f ratio f数f-band f带f-center lasers 铁离子中心雷射f-factor f因数f-number f数，光圈数f-sum rule f和数定则fabry lens 法布里透镜fabry-parot etalon 法布里-珀罗标准量具fabry-parot fringes 法布里-珀罗干涉条纹fabry-perot amplifier 法布里-珀罗放大器fabry-perot cavity 法布里-珀罗共振器fabry-perot etalon 法布立，拍若标准具fabry-perot fringes 法布立，拍若条纹fabry-perot injection laser 法布里-珀罗注入式激光器fabry-perot interferometer 法布里-珀罗干涉仪fabry-perot interferometers fabry-perot干涉仪fabry-perot laser 法布立，拍若雷射fabry-perot method 法布立，拍若法fabry-perot plates (etalons) fabry-perot标准具fabry-perot recycling spectromether 法布里-珀罗重复分光计fabry-perot resonator 法布里-珀罗共振腔fabry-perot type laser 法布里-珀罗型激光器face (1)正面(2)平面face angle 面角face cam 平面凸轮，端面凸轮face gear 平面齿轮face plate 面板face-centered 面心face-pumped laser 面抽运雷射face-pumped liquid laser device 面抽运液体激光器face-pumping 面抽逸faceplate 面板faceplates 面板facet (1)网格(2)小面facet mirror 网板反射镜，分段镜facetted eye 复眼facetted mirrors 多面体反射facial angle 面角facility (1)设备，装置(2)工具facsimile (1)传真(2)影印本facsimile camera 传真照相机facsimile chart 传真图facsimile lenses 传真机镜头facsimile radio 传真收音机facsimile receiver 传真接受器facsimile signal 传真信号facsimile synchronizing 同光传真facsimile telegraphy 传真电报factor (1)因数，系数(2)因子，因素factor of cooperation 合作系数factor of quality 品质因数factor of safety 安全因素，安全系factorial jump function 阶乘跳跃函数factorization 因子分解factted lens 多面体透镜facula 光斑fade (1)褪色(2)衷减fade-down 渐隐fade-in 渐显fade-out 渐隐fade-up 增亮fader (1)声量控制器(2)光亮调节器fading (1)褪色(2)衷落，衷退fahrenheit 华氏度fahrenheit scale 华氏温标fahrenheit thermometer 华氏温度计fail-safe performance 故障-安全特性failure (1)故障(2)损坏(3)失效failure of oscillation 停振faint haze 薄雾fall time 下降时间falling (1)下降(2)落像falling body 落体false alarm 假警报false color process 错色过程false image 误像false light 杂光false radiation 伪辐射false reflection 伪反射false-color 伪色false-color film 遮色多层彩色片family of curves 曲线族family of ellipses 椭圆族family of half-curves 半曲线族fan (1)扇，扇状物(2)鼓风机fan antenna 扇形天线fan beam 扇形光束fan dial 扇形刻度盘fan filter 扇形滤光器fan geometry mixing laser 扇形结构混合激光器fan in 扇入fan out 扇出fan test object 幻视器fan-shaped laser beam 扇形光栅fanning beam 扇徵射束fanning strip 扇形片fantascope 扇形激光束far field 远场近似far field approximation 远场结构far field construction 远场衍射far field diffraction 远场图far field pattern 远红外的far infrared 远红外far point 远点far sight (1)远视(2)远景far-infrared 远红外电子跃迁far-infrared elelctronic transition 远红外成像far-infrared grating 远红外光栅far-infrared laser pumping 远红外激光抽运far-infrared lasers 远红外线雷射far-infrared masser 远红外美射far-infrared molecular laser 远红外分子激光器far-infrared radiation 远红外辐射far-infrared region 远红外区far-infrared spectrophotomether 远红外分光光度计far-ir interferoemeter 远红外干涉仪far-off-axis anisotropic bragg diffraction 远轴外各向异性布喇格衍射far-ranging 远程的far-red light 远红光far-sightedness 远视眼far-ultraviolet 远紫外的far-ultraviolet radiation 远紫外辐射far-ultraviolet region 远紫外区farad 法拉第 扇形测式物faraday cage 法拉第盒faraday cell faraday configuration 远紫外辐射faraday constant 法拉第常数faraday dark space 法拉第配置faraday driver 法拉第驱动faraday effect 法拉第效应faraday isolator 法拉第形绝缘体faraday rotation 法拉第旋体faraday shutter 法拉第快门faraday's law 法拉第定律farady, pockel cells 法拉第电池farsighted (1)远视的(2)远景的fast ethernet network equipment 高速乙太网路设备fast fourier transform  (fft)快速傅里叶变换fast image intensifier 快速像增强器fast lens (1)快镜(2)强光透镜fast pulley 固定轮fast response 快速响应fast retardation axis 快速延迟轴fast-fired coatying 快速氧化膜fast-transverse-flow co2 laser 快速横流二氧化碳激光器fastening (1)连接(2)连接物(3)压固fastening screw 紧固螺钉fastie-ebert monochromator 法斯梯-艾伯特单色仪fastie-ebert spectrometer 法斯梯-艾伯特分光计fatigue 疲乏，疲劳fatigue effect 疲乏效应fatigue failure 疲乏失效fatigue fracture 疲乏断裂fatigue limit 疲乏极裂fatty oil 油脂fatty-acid layer 脂肪酸层fature 特徵，特点faucet (1)旋塞(2)龙头fault (1)故障，失效(2)失真faunhofer diffractin 夫琅和费衍射faunhofer holography 夫琅和费息全术faunhofer intensity distribution 夫琅和费光强度分布favorable interference 有利相干fbt fly back transformer 返驰变压器fddi network equipment 光纤分散式资料介面网路设备feather 滑键feathers 羽状裂缝feature extracton 特徵萃取，特徵提取featureexraction 羽饰febetron 冷阴极脉冲，β射线管fechnerratio 特徵挑选feed (1)馈电(2)进料(3)供片feed arrangement 供给装置feed spool 供片轴feedback 反馈feedback amlifier 反馈放大器feedback circuit 反馈电路feedback compensation 反馈补偿feedback control system 反馈控制系统feedback ratio 回授率，反馈比feedback-controlled optics 反馈控制光学feeder (1)馈电线(2)进料器feedthrough 馈入装置feedway 输送装置feeler 测隙规feeler lever 触杆feeler microscope 接触式测微显微镜feeler plug 测孔塞规feet 英尺feldspar 长石felt polisher 毡抛光器felt ring 毡环，毡圈felt seal 毡密封felt washer 毡垫圈felt-ring seal 毡环密封，毡圈密封female thread 阴螺纹，内螺纹femto 飞fermat principle 费马原理fermat's principle 费马原理fermi energy 费密能fermi gas 费密气体fermi level 费密能级fermi level diagram 费密能级图fermi resonance 费密共振fermi temperature 费密温度fermi-dirac distribution law 费密-狄拉克分布律fermi-dirac function 费米-狄拉克函数fermion 费密子fermion field 费密子场fermitron 场射管fermium  (fm)镄ferpic  (ferroelectric picture)铁电图ferric chloride 氯化铁ferric oxxide 氯化铁ferricyanide 氯铁酸盐，铁氯化物ferrimag 铁磁合金ferrite 铁氧体ferrite garnet 镱铁石榴石ferroalloy 铁合金ferroelastic effect 铁弹性效应ferroelectric 铁电的ferroelectric ceramic 铁电陶瓷ferroelectric crystal 铁电晶体ferroelectric domain 铁电畴ferroelectric film 铁电膜ferroelectric image intensifier 铁电像增强器ferroelectric ir detectro 铁电红外探测器ferroelectric phase transition 铁电相跃迁ferroelectric photoconductor 铁电光导管ferroelectricity 铁电现象ferroelectrics 铁电体，铁电材料ferromagnet 铁矶体ferromagnetic 铁磁的ferromagnetic curie point 铁磁居里点ferromagnetic curie temperature 铁磁居里温度ferromagnetic material 铁磁材料ferromagnetism 铁磁性ferrommagnetic resonance 铁磁共振ferrormagnetic substance 铁磁物质ferrosilicon 硅铁ferrous (1)亚铁的，二价铁的(2)含铁的(3)类铁的ferrous metal 黑色金属ferroxcube 立方结构铁气体ferroxphlana 六角晶格铁氧体ferrule 套管ferry-porter low 费瑞-波特原则fery glass prism 费瑞玻璃棱镜fery prism 费瑞棱镜fery spectrograph 费瑞光谱仪fetron 高压结型场效应管feussner prism 费斯纳尔棱镜fexitron 冷阴极脉冲x射线管fiber bragg grating 光纤光栅fiber channel 光纤通道fiber grating strain sensor 光纤光栅应变感测器fiber optic acoustic sensors 光纤声波感测器fiber optic bundles, non-silica, imaging 多成分影像光纤fiber optic bundles, silica, imaging 石英系影像光纤fiber optic cable 光纤fiber optic cable manufacturing equipment 光缆制造设备fiber optic cable, dispersion-shifted 色散位移光缆fiber optic cable, multimode, silica, 100/140 多模态石英系(100/140)光缆fiber optic cable, multimode, silica, 50/125 多模态石英系(50/125)光缆fiber optic cable, multimode, silica, 62.5/125 多模态石英系(62.5/125)光缆fiber optic cable, plastic 塑胶光缆fiber optic cable, plastic-clad silica 石英系塑胶包覆光缆fiber optic cable, polarization - maintaining 偏振恒持光缆fiber optic cable, single mode, standard, loosely buffered, aerial 单模态标准型松包fiber optic cable, single mode, standard, loosely buffered, direct buried 单模态标准fiber optic cable, single mode, standard, loosely buffered, duct 单模态标准型松包管fiber optic cable, single mode, standard, tightly buffered, multifiber 单模态标准型紧fiber optic cable, single mode, standard, tightly buffered, single fiber 单模态标准型fiber optic closure 光纤接续盒fiber optic color mark photo sensors 光纤式色彩标记感测器fiber optic connectors, multimode, adapter  (st,sma,fc/pc)多模态光纤连接器插fiber optic connectors, multimode, d4 多模态d4光纤连接器fiber optic connectors, multimode, fc/pc 多模态fc/pc相容光纤连接器fiber optic connectors, multimode, fddi 多模态fddi光纤连接器fiber optic connectors, multimode, multi-channel 多模态多心光纤连接器fiber optic connectors, multimode, sc 多模态sc光纤连接器fiber optic connectors, multimode, sma 多模态sma光纤连接器fiber optic connectors, multimode, st 多模态st光纤连接器fiber optic connectors, multimode,adapter (st,sma,fc/pc)多模态光纤连接器插座(st,sma,fc/pc)fiber optic connectors, single mode, adapter  (st,fc/pc, sc, biconic)单模态光纤连接器fiber optic connectors, single mode, adapter (st,fc/pc,sc,biconic)单模态光纤连接器插座(st,fc/pc,sc,biconic)fiber optic connectors, single mode, apc 单模态apc光纤连接器fiber optic connectors, single mode, biconic 单模态biconic光纤连接器fiber optic connectors, single mode, d4 单模态d4光纤连接器fiber optic connectors, single mode, fc/pc 单模态fc/pc光纤连接器fiber optic connectors, single mode, fddi 单模态fddi光纤连接器fiber optic connectors, single mode, multi-channel/mt 单模态多心光纤连接器fiber optic connectors, single mode, sc 单模态sc光纤连接器fiber optic connectors, single mode, st 单模态st光纤连接器fiber optic connectors, single mode,multi-channel/mt 单模态多心光纤连接器(mt)fiber optic current sensors 光纤电流感测器fiber optic density, constituent sensors 光纤浓度、成份感测器fiber optic density,constituent sensors 光纤浓度、成份感测器fiber optic displacement sensors 光纤移位感测器fiber optic distribution box 光纤终端箱fiber optic distribution panels 光纤分配板fiber optic electric field sensors 光纤电场感测器fiber optic faceplate 光纤面板fiber optic fibers, dispersion - shifted 色散位移光纤fiber optic fibers, plastic 塑胶光纤fiber optic fibers, plastic - clad silica 石英系塑胶包覆光纤fiber optic fibers, polarization - maintaining 偏振恒持光纤fiber optic fibers, silica, multimode, graded index,50/125 石英系多模态渐近式折射fiber optic fibers, silica, multimode, step index 石英系多模态步阶式折射率型光fiber optic fibers, silica, multimode,graded index ,100/140 石英系多模态渐近式折fiber optic fibers, silica, multimode,graded index ,62.5/125 石英系多模态渐近式折fiber optic fibers, silica, single mode,standard 石英系单模态标准型光纤fiber optic fiberscopes 光纤显微镜fiber optic field flattener 光纤场平板fiber optic furnaces, spinning equipment 光纤引线炉，纺丝设备fiber optic fusion splice equipment 光纤融接设备fiber optic gyro sensors 光纤陀螺仪感测器fiber optic gyroscope 光纤回转仪fiber optic illuminators 光纤光源fiber optic light distribution/radiation sensors 光纤光分布/放射线感测器fiber optic light guide 光纤光导fiber optic lightguides 光导管fiber optic liquid surface level sensors 光纤液位感测器fiber optic magnetic field sensors 光纤磁场感测器fiber optic magnetic flux sensors 光纤磁通量感测器fiber optic mark photo sensors 光纤式标记感测器fiber optic materials 光纤材料fiber optic oil film sensors 光纤油膜感测器fiber optic patchcord pigtail 光纤跳接线fiber optic photo sensors, fiber optic photo switches 光纤光电开关，光纤光电感测fiber optic polishing machines 光纤端面研磨设备fiber optic preforms 光纤预型体fiber optic pressure sensors 光纤压力感测器fiber optic probe 光纤探头fiber optic scanner 光纤扫瞄器fiber optic strain sensors 光纤变形感测器fiber optic strippers 光纤剥线夹fiber optic temperature sensors 光纤温度感测器fiber optic velocity sensors 光纤速度感测器fiber optic vibration sensors 光纤振动感测器fiber optic window 光纤窗fiber sensor 光纤感应器fiberscope 光纤视镜fibre  (fiber)(1)纤维(2)刚纸，纤维板fibre -optic roamn laser 纤维光学喇激光器fibre abundle 纤维束fibre amplifier 纤维放大器fibre beakage 纤维破损fibre commhnication 纤维通信fibre core 纤维耻fibre coupler 纤维耦合器fibre eigenvalue equation 纤维本徵值方程fibre gastroscope 纤维胃镜fibre laser 纤维激光器fibre lens couple 纤维透镜耦合器fibre light guide 纤维光导fibre optic communication information society 纤维光学通信信息协会fibre optics 纤维光学fibre pipe 纤维光管fibre profile 纤维剖面fibre ring interferometer 纤维环干涉仪fibre splicing technique 纤维连接技术fibre waveguide 纤维波导fibre-optic bundle 纤维光束fibre-optic cable 纤维光缆fibre-optic colorimeter 纤维光学色计fibre-optic communication 纤维光学通信fibre-optic coupling 纤维光学耦合fibre-optic endoscope 纤维光学内窥镜fibre-optic field flatterner 纤维光学平场器fibre-optic flying-spot scanner 纤维光学飞点扫描装置fibre-optic image scramber 纤维光学图保密器fibre-optic interferometer 纤维光学干涉仪fibre-optic light carrier 纤维光学光导管fibre-optic light guide 纤维光导fibre-optic light-transmission system 纤维光学光传输系统fibre-optic link 纤维光连接fibre-optic memory 纤维光学存储器fibre-optic plate 纤维光学板fibre-optic repeater 纤维光中继器fibre-optic scanner 纤维光学扫描装置fibre-optic shape converter 纤维光学形状变换器fibre-optic sheath 纤维光学包皮fibre-optic transmitter 纤维光学发送机fibre-optic-faced vidicon 纤维光学面光导摄像管fibre-optics image dissection camera 纤维光学析像摄象机fibre-optics scan system 纤维光学扫描系统fibre-otpic-faced tube 纤维光学面板显像fibrefrac 铝硅陶瓷鑯维fibreglass 玻璃纤维，玻璃丝fibreglass optics 玻璃纤维光学fibrescope 光学纤维观察镜fibrograph 光学纤维照相fick's law 菲克定律fictitious primary color 虚拟原色fidelity (1)保真度(2)保真性fidelity criterion 保真度判据fidelity defect 保真度不足fiducial line 基准线fiducial mark 基准符号fiducial point 基准点field (1)场(2)视场field angle (1)视场角(2)张角field annealing 场置退火field camera 外景照相机，轻便摄影机field coil 磁场激发线圈field corrector 像场校正镜field curvature 场曲率field deformation 场形变field depth 景深field diaphragm 视场光阑field distortion 场畸变field effect controlled switch 场效应控制开关field effect transistor 场效应晶体管field emission 电场放射field emission microcope 场致发射显微镜field emission microscope 场致发射显微镜field emssion 场致发射field emssion electron microscope 场致发射电子显微镜field flattener 视场致平器，平像场校正器field flattening lens 平场镜头field glass 野外镜，望远镜field glasses 轻便双筒望远镜field induced photomission 场致光发射field intensity 场强field lens 向场镜field lenses 向场透镜field mesh electrode 场网电极field number 视场直径field observation 野外观察field of view 视场field of vision 视场field pattern 场图，场分布field pick-up (1)室外照相(2)实况转播field piece 场镜field quantization 场量子化field range 视场范围field ray 轴外物点光线field repectition rate 场重复频率field repetition rate 场重覆率field scannign sensor 场扫描传感器field stop 视场光阑field sweep 场扫描field theory 场论field tile 场倾斜field view stop 视场光阑field wave 激发波，激磁波field yoke 磁轭field's discontinuity 场不连续性field-biased 场偏置的field-flattended schmidt camera 平像场斯密特照相机field-ion microscope 场离子显微镜field-ion microscopy 场离子显微术fieldistor 场控晶体管fieldtron 场效应器件figure (1)图，图形(2)数字(3)数值(4)位数figure of merit 灵敏值，优值figure tolerance 形状公差figured glass 花纹玻璃figuring 修磨figuring of surface 表面修磨filament (1)丝(2)灯丝filament activity 灯丝激活filament burn-out 灯丝烧断filament emissions 丝极发射，灯丝发射filament lamp 白炽灯filament lief 灯丝寿命filament temperature 灯丝温度filament transformer 灯丝变压器filamentation 灯丝形成filamentray structure (1)灯丝结构(2)丝状结构filametntary (1)细丝的(2)灯丝的(3)纤维丝的filar eyepiece 有刻度目镜filbtercharacteristic (1)滤波器特性(2)滤光片特性file (1)文件(2)文件存储器(3)锉刀file computer 文件计算机file drum 文件磁鼓file memory 文件存储器file processor 文件处理器filer (1)填料，衬垫(2)填充数filer axis 丝缕轴fill factor 填充因素fill optisal sensing device 软片感光装置filled band 满带filled level 满充能级，占满能级filled shell 满充壳层filleted corner 圆角filling 填料，装填filling factor 填充系数fillister (1)凹刨(2)凹槽film adhesion 膜层附着力film advance lever 输片杆film advancing whell 输片轮film badge 胶片式线计量器film base 片基film camera 电影摄影机film cartride chamber 胶片暗盒film cartridge 胶片暗盒film cassette 胶卷暗盒film clip (1)胶片夹子(2)影片剪辑film coating 镀膜film coefficient of heat transfer 薄膜导热系数film compostition 薄膜组成film contiuity 薄膜连续性film cooling 薄膜冷却film counter 照像机用 之底片计数器film dosimeter 胶片剂量计film drum 输鼓轮film feed mechanism 输片机构film fogging 胶片灰雾film glass 薄膜玻璃film grain nosie 胶片颗粒噪声film granularity 胶片颗粒度film graph 胶片录声设备film holder 胶片夹film indenticication 胶片鉴定film intensity measureing device 薄膜强度测定仪film load window 装胶片窗film memory 薄膜存储器film of oxide 氧化膜film plane 软片平面film plane indicator 胶片面指示器film pressing plate 胶片压板film projector 电影放映机film radiography 射线照相法film reader 显微胶片阅读器，胶带读出器film recorder 录片机film recording (1)影片录声(2)屏幕录像film reproduceer 影片复制机film response 胶片响应性film rewind button 胶卷倒卷钮film rewind crank 胶卷倒卷手柄film rewind shaft key 胶卷倒卷轴键film ring 胶片环film scanning 软片扫描film setting 照相排字film speed 胶片感光度film speed scale 胶片感光度等级film speed set ring 胶片感光度定环film stack 薄膜叠存储器film storage 薄膜存储器film storage unit 胶片存储单元film strip (1)教育幻灯片(2)片带，片条film supply 供片盒film tansporting system 输片系统film thickness 膜厚film thickness gauge 模厚度量计film thickness measuring 膜厚测量film thickness measuring device 膜厚测定仪film thickness meter 膜计film thickness monitor 膜厚监测仪film velocity 输片速度film weld 软片接头film-metering device 薄膜测定装置film-stress interferometer 薄膜应力千涉仪filmatic bearing 油膜轴承filmentary conpling 丝状耦合filminess 薄膜状态filming (1)生膜，薄膜形成，镀膜(2)摄影filter (1)过滤(2)滤光器，滤光片，滤光镜(3)滤波器(4)过滤器filter action (1)滤光作用(2)滤波作用filter by means of vacuum 真空过滤器filter by suction 吸入过滤器filter capacity 过滤能力filter cartride 过滤盒filter circuit 滤波电路filter deffect (1)滤色效应(2)滤波效应filter discrimination (1)滤波能力(2)滤波器分辨力filter element (1)滤光元件(2)滤波元件filter factor 过滤因素filter fator 滤光系数filter gauze 滤网filter glass 滤色玻璃filter grating 滤色光栅filter ir interference-absorption type 红外干涉-吸收型滤光片filter knob 滤光镜铵钮filter lens 滤光镜，滤色镜filter liquide 过滤液体filter method (1)滤波法(2)滤光法filter mount 滤光套filter paper 过滤纸filter pass band 滤波器通带filter plate 滤光片filter spectrophotometer 滤过分光分度计filter stop band 滤波器阻带filter transformer 滤波变压器filter transmission band 滤波器通带filter wheel 滤光轮filtered air 过滤空气filtered beam 过滤光束filtered image 过滤象filtering (1)滤光(2)滤波filterscan tube 滤光扫描管filtration (1)滤波(2)滤光(3)过滤filtrator 过滤器fin 叶片final amplifier 终端放大器final assembly 总装final control elemnt 最後控制元件final coutoff 最後截止final etching 最後腐史final evaporation 最後蒸发final gettering 最後吸气final mass 最终质量final payload 净有负载final presure 最後压力，极限压强final pump-down 最後抽气final reading 最终读数final stage 末级final vacuum 最後真空度final value theorem 终值定理finder (1)取景器，录像器(2)瞄准器(3)测距仪finder aperture (1)寻像器孔径(2)瞄准器孔径finder circle 导像圈finder frame 取景框finder screen 取景器屏finder telescope (1)寻镜望远镜(2)瞄准望远镜fine 精密的，精细的fine adjustment 微调，精密校正fine balance 精密平衡，精调fine data channel 精确数据通道fine definition 高清晰度fine detail 细节fine dotted line 细虚线fine etching 精密蚀刻fine grain (1)微粒(2)细粒fine grain developer 微粒显影剂fine grating 细光栅fine grinding wheel 细砂轮fine line 细线fine measuring instrument 精密测量仪器fine oil stone 细油石fine particle 细小颗粒fine pitch 小螺距fine pumping 高真空抽气fine structure 精细细构fine thread 细牙螺纹fine thread screw 细牙螺钉fine tuning 精细调谐fine vacuum 高真空fine wheel 细砂轮fine-collimation apparatus 精细准直仪器fine-focusing knob 精调焦旋钮fine-grained 微粒的fine-range scope 精密测距镜finely-honed 精密搪磨的fineness (1)细度(2)钝度(3)光洁度(4)锐度finger (1)测厚规(2)指针(3)手指finger-impu system 键盘输入装置fingerprint 指纹fingerprint cameras 指纹照相机fingerprint indentification 指纹识别fingertip control 按钮控制，键盘控制fining 精细化finish (1)抛光(2)精加工(3)终饰(4)表面光洁度finish surface (1)精加工面(2)抛光面finished prodcut (1)成品(2)光制品finishing allowance 精加工裕量finishing polish 精饰抛光finishing size (1)精加工尺寸(2)完工尺寸finite aperture 有限孔径finite beam source 有限射束源finite linewidth 有限线宽度finite object point 有限远物点finite ray 有限远光线finsen unit 芬生单位fipping frequency 触发频率fir-laser 远红外激光器fire cracks 爆裂纹fire-control optics 射击指挥光学系统，火炮控制光学fire-proof 防火的，耐火的fireproof coating 耐火涂层，耐火敷层first angle projection 第一角投射法first approximation 初步近似，一级近似first electron lens 第一电子透镜，阴极透镜first eye lens 首侧复曲面first harmonic 基波first order aberration 初级像差first order reflection 一级反射first order spectrum 第一级光谱first principal point 第一主点first radiation constant 第一辐射常数first side toric 首侧弯月面first surface mirror 表面镀膜镜first-order 一级，初级first-scattering angle 第一散射角，最初散射角fish tail 鱼尾fish-eye camera 鱼眼照相机，水中照相机fish-eye lens 鱼眼透镜fish-eye of maxwell 麦克斯韦鱼眼fish-eye type objective lens 鱼眼型物镜fish-lens 鱼眼透镜fission 裂变，分裂fissionable fuel 可裂变燃料fissure 裂缆，道子fit 非特fit joint 套筒接合fit key 配合键fit keyway 配合键槽fit quality 配合等级fit tolerance 配合公差fit-up 配合fitting (1)装配(2)配合(3)配件fitting control 装配控制fitting joint 装配连接fitting surface 配合面fitting tight 装配紧密fitting-up 装配fix stopper 固定销，定位销fix-focus lens 定焦透镜fixation (1)固定，安装(2)定影，定像fixation device 固定装置fixed array multielment lidar 固定阵列多元激光雷达fixed axis of rotation 鱼眼透镜fixed base 固定底座fixed beam 固定光束fixed bias circuit 固定转动轴fixed block 固定件fixed condenser 固定偏压电路fixed coupling 固定联轴节fixed encoded theodolite 固定编码经纬仪fixed focus 定焦点fixed focus camera 定焦照相机fixed gauge 固定规fixed guide bar 固定导杆fixed laser bar code scanners 固定式雷射条码扫描器fixed light 固定灯光fixed mirror 固定镜fixed mounting base 固定支承座fixed optical attenuators 光衰减器(固定)fixed pattern noise 固定图形噪声fixed piovt point 固定支承点fixed prism 固定棱镜fixed resister 固定焦点fixed reticle 固定十字标线，固定调制盘fixed slit 固定狭缝fixed view shifter projector 固家影像转换放映机fixed-frequency source 固定率源fixer (1)固定器(2)定影剂fixing bath (1)定影液(2)定影槽fixing salt 定像剂fixing solution 定影液fixning (1)固定(2)定景fixture (1)夹具(2)装置fizeau fringe 斐索干涉条纹fizeau fringes 固定电阻器fizeau interferomenter 斐索干涉仪fizeau interferometer 菲佐条纹fizeau interferometersfizeau 干涉仪fizeau toothed whool 菲佐干涉计flag 菲佐齿轮flake 薄片flame 火焰flame acrc lamp 焰弧灯flame arc 焰弧flame deflector 火焰导向器flame emission deterctor 火焰发射检测器flame emission spectroscopy 旗标flame excitation 火焰激发flame holder 火焰稳定器flame laser 火焰激光器flame photmetry 火焰光度测量计flame photometer 火焰光度计flame photometric analysis 火焰光度分析flame pyrometer 火焰高温计flame shield 火焰屏蔽flame spectrometer 火焰分光计flame spectrometry 火焰光谱光度测量flame spectrophotometry 火焰分光光度学flame spectrum 火焰光谱flame spetrum 火焰光谱flame welding 熔焊，气焊flange (1)凸缘(2)镶边flange focal distance 基面载距flange focal distance (ffd)凸缘焦距flank (1)侧面(2)齿侧flannel 法兰绒flannel disk 法兰绒抛划盘flapping 摇摆运动flare (1)闪光(2)闪烁(3)照明弹flare light 闪光flare spot 耀斑flare-free telescope sight 无闪光望远镜瞄准具flash arc 闪光弧flash barrier 闪光挡板flash cooler 快速冷却器flash desorption spectroscopy 闪光解吸收光谱术flash dryer 快速乾燥器flash duration 闪光持续时间flash evaporation 快速蒸发flash evaporation technique 快速蒸发技术flash exposure 闪光曝光flash gun 闪光枪flash head 闪光灯头flash intensity 闪光强度flash lamp 闪光灯flash lamp pumped dye laser 闪光灯抽运染料激光器flash lamp pumping 闪光灯抽运flash light 闪光灯flash meter 闪光昦曝光表flash photographic density filter 闪光照相密度滤器flash photolysis 闪光光解作用flash point 闪光点flash pumped 闪光抽flash radiography 闪光射线照相术flash ranging 闪光测距flash screen 闪光灯屏flash socket 闪光灯座flash spectroscopy 闪光光谱学flash synchronzed shutter 闪光同步快门flash tube 闪光管flash unit 闪光灯部件flash-photometry 闪光光度学flash-powder 闪光粉flashback voltage 反闪电压flashbulb 闪光灯泡flashcube 闪光灯块flashed glass 闪光玻璃flasher 闪光灯flashlamp 闪光灯flashtabe 闪光管flashtube lamp 闪光灯flask 烧瓶flat (1)平的(2)平面(3)平镜flat angle 平角flat blank 平面胚件flat crts 平面阴极射线管flat inclined mirror 斜面镜flat interferometer 平面干涉仪flat key 平键flat lapping block 精研平台flat machine 平面抛光机flat mirrors 平面镜flat pack 偏平装flat plate 平板flat polisher 平面抛光机flat reflector 平反射器，平反射镜flat saddle key 平鞍形键flat spring 扁簧，片簧flat spring hinge 扁簧铰键flat surface 平面flat tool 平面磨光磨具flat topped pulse 平顶脉冲flat-bed color image scanners 平台式影像扫描器flat-field lens 平场透镜，平扫描场透镜flat-field objective 平场物镜，平扫描场物镜flat-layer powder camera 平层粉末照相机flat-roof mirror 平屋脊镜flatncess of field 像场平度，扫描场平度flatness of image plane 像面平度flatness testers 平面度测定系统flattened field (1)平像场(2)扁平场flattener (1)平像场器(2)矫平机flattening lens 平像场透镜flatter surface 高精平面flatuess 平度，平面度，平直度flatuess and straighness measuring instrument 平直度测量仪flaw 裂纹，瑕疪fleck 斑点，斑影flexibility (1)挠性(2)弹性(3)适应性(4)柔顺性flexibility factor 挠度系数flexible 挠性的flexible cord 软线flexible diagnostic fresnel lens 诊断用弹性fresnel 镜片flexible drive 挠性传动flexible fiber-optic gastroscope 挠性纤光学胃镜flexible imagescope 可弯曲视镜flexible joint 挠性连轴节