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1、键入文字IT专业英语词典fab 工厂，加工车间fabrication 制造fabrication, wafer 晶圆制造face-surface mirror 表面镜像facility, post-processing 后处理设施facility, report generation 报表生成设施facsimile 传真机factor 因数factor, amplification 放大因数factor, crest 峰值因数factor, damping 阻尼因数factor, derating 降额因数factor, dissipation 耗损因数factor, interleave 交
2、错因数factor, power 功率因数factoring 因子分解factory automation interconnection system (FAIS) 工厂自动化互连系统fade in 渐强；淡入fade margin 衰落极限fade out 渐弱；淡出fading 褪色fail-safe 故障保险failure analysis 故障分析failure criteria 失效准则failure mode 失效模式，故障模式failure rate 故障率failure, initial 初始故障failure, random 随机故障failures, mean time
3、between (MTBF) 平均失效时间fall time 下降时间falling edge 下建边缘false alarm 假警报false trigger 假触发family radio service (FRS) 家庭无线电服务fan cooled 风扇致冷fan-in 扇入fan-in cone 扇入驱动电路fan-in cone 扇入驱动电路fan-out 扇出far field 远地far-end crosstalk 远端交越干扰farad (F) 法拉fast Ethernet 快速以太网fast Fourier transform (FFT) 快速傅立叶变换fast Four
4、ier transform algorithm 快速傅立叶变换演算法fast SCSI 快速小型计算机系统接口fast fading 快速衰落fast handshake 快速握手fast interrupt request (FIRQ) 快速中断要求fast packet switching 快速分组交换，快速包交换fast select calls 快速选择呼叫fast-recovery diode 快速回复二极管fast-recovery epitaxial diode (FRED) 快速恢复外延二极管fatal error 致命错误fatal-error handler 致命错误处理程
5、序fatigue 疲乏；疲劳fatigue, metal 金属疲劳fault 故障；错误fault coverage 故障检测范围；错误检测范围fault current 障碍电流fault isolation 障碍隔离fault mode input current 故障模式输入信息流fault simulation 故障模拟；错误模拟fault tolerant 容错fault, intermittent 间歇性故障fault, page 分页错误fault, sustained 持续错误fault-grading 故障分级；错误分级fault-tolerant computer 容错电脑
6、fax machine 传真机fax-over-IP gateway IP 上传真网关，利用IP实现传真功能的网关feasibility 可行性feature 特点；功能feed 馈给；进纸feed forward 向前馈送，前馈feed-through 给进feed-through cell 给送单元feed-through placement 给进式布局feedback 反馈feedback amplifier 反馈放大器feedback capacitance 反馈电容量feedback circuit 反馈电路feedback control 反馈控制feedback loop 反馈环
7、路feedback, current 电流反馈feedback, negative 负反馈feedback, position 定位反馈feedback, positive 正反馈feedback, thermal 热反馈feedback, voltage 电压反馈feeder 馈入器feeder distribution interface (FDI) 馈线分配接口feeder lockout 馈线阻塞，馈线锁定feeder, component 元件馈入器feedforward 前馈femto E （毫微=10 -15）ferrite 铁氧体ferrite core 铁氧体磁心ferrit
8、e toroid 铁氧体环状磁心ferroelectric 铁电性ferroelectric chip 铁电芯片ferroelectric liquid crystal (FLC) 铁电液晶ferroelectric random access memory (FRAM) 铁电随机存取存储器ferroelectricity 铁电现象ferromagnetic 铁磁性ferromagnetic substance 铁磁性物质ferromagnetism 铁磁性ferroresonance 铁磁共振ferroresonant power supply 铁磁谐振电源ferrule 箍，金属包头，套圈
9、，环圈fetch 找取fetch request 找取要求fetch, data 数据找取fetch, operation code 运算代码找取fiber 光纤，光缆；纤维fiber bend radius 光纤弯曲半径fiber buffer 纤维缓冲层fiber distributed data interface (FDDI) 光纤分布式数据接口fiber in the curb (FITC) 光纤到路边fiber in the loop (fitl) 特定环路中光纤fiber local injection and detection, single-mode 局部注入及检测单模光纤
10、fiber loss 光纤损耗fiber miles 光纤英里fiber optic test procedures (FOTP) 光纤测试程序fiber optics 光纤fiber, multi-mode 多模光纤fiber, optical 光学纤维；光纤fiber, single-mode 单模光纤fiber-optic cable 光缆fiber-optic ring 光纤环fiber-optic ring media access controller 光纤环媒介存取控制器fiber-optic systems filter 光纤系统滤波器fiber-optic transmiss
11、ion system 光纤传输系统fiber-to-the-curb (FTTC) 光纤到路边fiber-to-the-home (FTTH) 光纤到家fidelity 传真度fidelity, high- (HI-FI) 高度传真fiducial mark 定位标记；基准标志field 栏位field application engineer 应用工程师field composable lens 现场可组合镜头，野外可组合镜头field control unit (FCU) 现场控制单元field effect 电场效应field effect transistor (FET) 场效应管fi
12、eld emission 电场放射field emission display (FED) 电场放射显示器field frequency 场效频率field intensity 场强度field of view 视场field preamble 栏位前文field programmable circuit board (FPCB) 可现场编程电路板field programmable gate array (FPGA) 可现场编程门阵列field programmable interconnect component (FPIC) 可现场编程互连元件field strength 电场强度；磁场
13、强度field testing 实地测试field uniformity 场均匀性field, bit 位资料栏field, data 数据栏field, electric 电场field, electrostatic 静电场field, magnetic 磁场field, revolving magnetic 旋转磁场field, static magnetic 稳恒磁场field-emission display (FED) 场式放射显示器field-programmable interconnect device (FPID) 现场可编程互连器件（设备）fieldbus 现场总线figu
14、re of merit 效益指数figure, noise 噪音系数figure, significant 有效数字filament 灯丝filament circuit 灯丝电路filament, tungsten 钨丝file 档案file access mode 档案存取模式file allocation 档案配置file allocation table (FAT) 档案配置表file control block (FCB) 档案控制区块file design source (DSF) 设计源档案file handler 档案处理程序file server 档案伺服器file tran
15、sfer access and management (FTAM) 档案传送存取及管理file transfer protocol (FTP) 档案传送协定file, element list (ELF) 元素表列档案file, help 辅助档案file, object 目的档案file, register 寄存器档案file, source 源档案fill 填入；填补fill, auto- 自动填充filler material 填充材料fillet 焊缝filling, back- 倒填入film 薄膜film super-twisted (FTN) 膜式超级扭曲film, coated
16、 镀膜film, dry 乾膜film, plastic 塑料膜film, thick- 厚膜film, thin- 薄膜film, wet 湿膜filter 过滤器；滤光器；滤波器filter capacitor 滤波电容器filter inductor 滤波电感器filter, Butterworth 巴特沃斯滤波器filter, C-message 信息滤波器filter, Gaussian 高斯滤波器 filter, Nyquist 尼奎斯特滤波器filter, active 主动滤波器filter, all-pass 旁路滤波器filter, bypass 旁路滤波器filter,
17、comb 梳形滤波器filter, digital 数字滤波器filter, equiripple finite impulse response (EFIR) 平波有限脉冲反应滤波器filter, finite impulse response 有限脉冲反应滤波器filter, helical chip 螺旋形芯片式过滤器filter, low-pass 低通滤波器filter, mechanical 机械式滤波器filter, multi-gap color 多隙彩色滤波器filter, narrowband 窄频带滤波器filter, natural glitch 自然干扰过滤器filt
18、er, optical 滤光器；滤光镜filter, power line 电源线滤波器filter, programmable universal 可编程万用滤波器filtering 滤波filtering, spectrum 光谱过滤filtration 过滤filtration system 过滤系统final test yield (FTY) 最终测试产品final velocity 末速fine grain 细微粒fine pitch 微间距fine pitch technology 微间距技术fine tuning 微调；精调fine-grained 高密度fine-pitch b
19、all grid array (FBGS) 微间距球栅阵列fine-pitch device (FPD) 微细间距器件finger-type 爪式finite impulse response (FIR) 有限脉冲反应finite impulse response filter 有限脉冲反应滤波器finite overflow 有限溢值finite state machine 有限状态机器finite-element analysis (FEA) 有限元素分析fire code 法尔码（纠错循环码）firewall 防火墙firewalling 防火墙firmware 固件first Fres
20、nel zone 第一菲涅耳区first-in first-out (FIFO) 先进先出fishbone antenna 鱼骨形天线fission 核裂变fission, nuclear 核裂变fixed bias 固定偏压fixed channel assignment (FCA) 固定信道分配fixed phase 固定相位fixed-bias circuit 固定偏压电路fixed-point 定点fixed-wireless access 固定的无线接入fixture 夹具fixture, dual-sided 双面夹具fixture, test 测试夹具fixture, vacuu
21、m 真空夹具flag 旗标flag alarm 警报信号器flag, mode 状态旗标flame photometer 火焰光度计flame retardant 阻燃物flange 凸缘flare 耀斑flash card 快闪卡flash file system (FFS) 快闪档案系统flash memory 快闪式存储器flash point 着火点flat 直接flat cable 扁平电缆flat memory model 平面存储模式flat pack 扁平封装flat panel 扁平面板flat panel controller 扁平面板控制器flat-panel displ
22、ay (FPD) 扁平面板显示器flat-tension mask (FTM) 扁平面板掩膜flatness 平直度flex circuit 柔性电路flexibility 弹性；灵活性flexible manufacturing system (FMS) 弹性生产系统flexible printed circuit (FPC) 可挠性印刷电路flexural strength 抗弯曲强度flicker 闪烁flicker-free 无闪烁flip TAB 倒装式TAB，倒装式载带自动粘结flip chip attach (FCA) 倒装芯片贴装，倒装芯片附着flip chip bump 倒装
23、片焊接凸点，倒装片对准点flip chip in package 倒装片封装flip chip on board 板衬底倒装片flip chip on glass 玻璃衬底倒装片flip chip on substrate 基片衬底倒装片flip-chip 倒装式芯片flip-chip technology 倒装式芯片技术flip-flop 触发器flip-flop, delay 延迟触发器flip-flop, resonant 共振触发器flipped chip 倒装芯片flipped tab 倒装接头floating diffusion amplifier 浮动扩散放大器floating
24、gate 浮门floating gate avalanche injection MOS transistor (FAMOST) 浮动栅雪崩注入型MOS晶体管floating output 浮动输出floating point 浮点floating-point intensive 浮点密集floating-point slave accelerator 浮点附属加速器floating-point unit (FPU) 浮点处理单元flooding 扩散法floor planning 预布局floppy disk 软盘floppy disk drive (FDD) 软盘机floptical di
25、sk 软式光盘flow chart 流程图flow control 流程控制flow diagram 流程图flow, data 数据流程flow, electron 电子流flow, line of 流线flow, solder 焊锡流flow, steady 稳流flow-through architecture 流通结构fluctuating 波动fluid 流体fluid friction 流体摩擦fluorescence 萤光fluorescent indicator panel (FIP) 萤光指示板fluorescent lamp 荧光灯，日光灯fluorescent light
26、 萤光灯fluorescent screen 萤光幕fluorinated ethylene propylene (FEP) 氟化乙丙烯flush antenna 嵌入天线，隐蔽天线flush-left 左边排齐flush-mounted 平镶flush-right 右边排齐flutter 高频抖动flutter echo 颤动回波，多次回声flux 焊剂；通量flux activation temperature 焊剂活化温度flux activity 焊剂活性flux characterization 焊剂特性化flux density 通量密度flux linkage 磁链flux re
27、sidue 焊剂残渣flux reversal 通量逆转flux solder connection 焊剂焊料连接flux, leakage 漏通量flux, luminous 光通量flux, magnetic 磁通量flux, no-clean 免清洗焊剂fluxmeter 磁通量计，麦克斯韦计flyback 回扫flyback converter 回扫转换器flyback pulse 回扫脉冲flyback transformer 回扫变压器flyby 飞越 flying height 飞行高度foam fluxing 泡沫状焊剂focal length (f) 焦距；焦长focal l
28、ine 焦线focal plane 焦平面focus 焦点focus, real 实焦点focus, virtual 虚焦点focused-ion beam (FIB) 聚离子束focusing 聚焦focusing coil 聚焦线圈focusing screen 对焦屏foil, copper 铜箔foldback circuit 监听电路，返送电路foldback current 折返电流foldback, power 电源折返folded dipole 折迭偶极folded line 折迭线路foldover distortion 叠象失真，折叠失真font 字型font disk 字
29、模盘，铅字盘font outlining 字型描绘font, outline 空心字foot length 支脚长度foot switch 脚踏开关footprint 占位面积forbidden zone 禁用区force 力force ratio 力比例force vector 力向量force, action 作用力force, adhesive 黏著力force, anti-magnetic 反磁力force, attractive 引力force, back electromotive 反电动势force, balance 平衡力force, centrifugal 离心力force,
30、 centripetal 向心力force, cohesive 内聚力force, concurrent 共点力force, conservative 保守力force, constant 恒力force, coplanar 共面力force, counter 反作用力force, counter electromotive 反电动势force, dissipative 耗散力force, electric 电力force, electromagnetic 电磁力force, electromotive (EMF) 电动势force, electrostatic 静电力force, exter
31、nal 外力force, frictional 摩擦力force, gravitational 引力force, induced electromotive 感应电动势force, inertial 惯性力force, intermolecular 分子间力force, internal 内力force, line of 力线force, magnetic 磁力force, magnetomotive 磁动势force, mechanical 机械力force, molecular 分子力force, moment of 力矩force, net 净力force, reaction 反作用力f
32、orce, restoring 回复力force, resultant 合力force, shear 切力force, spring 弹压force, thermoelectromotive 热电动势force, unit of 力的单位force, viscous 黏力force, zero insertion 零插入力forced convection infrared reflow 强制对流式红外线回流forced discharge 强制放电forced-air convection infrared reflow 通风对流式红外线回流foreground 前景foreign exch
33、ange office (FXO) 外地交换局foreign exchange service (FXS) 外地交换业务fork, tuning 音叉form 格式；表格form factor 形状系数form feed 换页form feed character 换页字符formal testing 正式测试formal verification 正式验证format 格式；格式化format string 格式字串format, analog data interchange (ADIF) 模拟数据交换格式format, data interface (DIF) 数据接口格式format,
34、 document interchange (DIF) 文件交换格式format, electronic design intermediate (EDIF) 电子设计中间格式format, high-level 高阶格式化format, intermediate 中间格式format, low-level (LLF) 低阶格式化formation voltage 生成电压，形成电压forming, extrusion 挤压成形forward annotation 前向注解forward bias 前向偏移forward channel 前向信道，正向信道forward compatible
35、前向兼容 forward converter 正向转换器forward current 正向电流forward error correction (FEC) 前向纠错，正向纠错forward estimation 前向预测，前向估计forward link trilateration (FLT) 向前链路三边测量forward period 正向周期forward recovery 正向恢复forward voltage 正向电压forward voltage drop 正向压降forward voltage overshoot 正向过冲电压forwarder 货运公司fossil fuel
36、化石燃料，矿物燃料foul electrolyte 污秽电解液foundry 铸造厂, 晶圆代工four binary three ternary code (4B3T) 4B3T 编码four-quadrant multiplier 四象限乘法器four-way interleaved memory 四路交错存储器four-wire circuits 四线制电路fourth-generation language 第四代语言fractal 分形，分数据，碎片,拼图fractal compression 部分压缩，局部压缩，分形压缩,拼图压缩fractal surface 不规则断裂面，分形面
37、fraction 分数；部分fractional distillation 分馏fracture 破裂fragment 报片；段落，片段，分段fragmentation 存储残片；分段存储，分割信息包frame 框架；帧；信息段frame alignment 信息段定位frame alignment word 帧定位字frame boundary 信息段范围frame buffer 帧缓冲器frame buffering 帧缓冲frame check sequence (FCS) 帧校验序列frame error rate (FER) 帧差错率frame grabber 帧捕获器,帧图像接收器
38、frame rate 帧速率frame relay 帧中继frame relay access device (FRAD) 帧中继访问设备，帧中继接入设备frame relay assembler/disassembler (FRAD) 帧中继组装/拆卸设备，帧中继组装/拆卸程序frame size 帧大小frame synchronizer 帧同步器frame synchronizing pattern 信息段同步模式frame user network interface (FUNI) 帧用户网络接口frame, beacon 指示信息段frame, page 分页框架frame-buff
39、er memory 帧缓冲器存储器frame-check sequence (FCS) 信息段检测序列frame-to-frame 帧对帧framework 框架技术framing 信息段划分framing bit 信息段划分位framing synchronization 成帧同步，分帧同步free capacitance 分离电容free electron 自由电子free expansion 自由膨胀free neutron 自由中子free oscillation 自由振荡；自激振荡free space 自由空间free space loss (FSL) 自由空间损耗，自由空间衰减fr
40、ee surface 自由面free-space optical interconnect 自由空间光互连，无限制光互连freephone 免费电话freeze mode 冻结状态；冻结模式freezing 冷凝；冻结freezing point 冰点；凝固点freon 氟利昂frequency 频率frequency allocation 频率分配frequency band 频带frequency bandwidth 频率频宽frequency bias 频偏frequency control 频率控制frequency converter 变频器frequency counter 频率计
41、数器frequency detector 频率检测器frequency deviation 频率偏移，频移frequency difference 频率差frequency distortion 频率失真frequency diversity 频率分集，频率分隔，散频frequency diversity QAM (FDQAM) 频率分集正交调幅frequency divider 分频器frequency domain 频域frequency drift 频率漂移frequency filtering 频域滤波，频率滤波frequency hopping 跳频，频率跳动frequency ho
42、pping CDMA (FH-CDMA) 跳频码分多址frequency meter 频率计frequency modulation (FM) 频率调制frequency modulation deviation 频率调制偏差frequency monitor 频率监控器frequency range 频率范围frequency resonance 频率谐振frequency response 频率反应frequency response correction 频率反应更正frequency reuse 频率再用frequency selective fading 频率选择性衰落frequen
43、cy shift keying (FSK) 频率变换调制frequency stability 频率稳定度frequency swing 频率摆动frequency synthesizer 频率合成器frequency time matrix 频率-时间矩阵frequency tolerance 频率容隙frequency translation 频率变换，变频frequency, audio (AF) 音频；声频frequency, cutoff 截止频率frequency, discharge 放电频率frequency, dual-tone multi- (DTMF) 双音多频frequ
44、ency, extreme high (EHF) 极高频frequency, field 场效频率frequency, fundamental 基频frequency, high (HF) 高频frequency, hopping 跳跃频率frequency, horizontal scanning 水平扫描频率frequency, image 镜像频率frequency, intermediate (IF) 中频frequency, low (LF) 频率frequency, natural 自然频率；固有频率frequency, operating 作业频率frequency, radio
45、 (RF) 射频frequency, resonant 共振频率；谐振频率frequency, roll-off 衰减频率frequency, sampling 取样频率frequency, scanning 扫描频率frequency, self-resonant (SRF) 自谐振频率frequency, ultra-high (UHF) 超高频frequency, ultra-low (ULF) 超低频frequency, vertical scanning 垂直扫描频率frequency, very-high (VHF) 特高频frequency, very-low (VLF) 特低频frequency-division duplex (FDD) 频分双工frequency-division multiple access (FDMA) 分频多工存取frequency-division multiplexing (FDM) 分频多工frequency-domain equalization (FEQ) 频域均衡frequency-hopping spread spectrum 跳频扩展频谱frequency-modulation deviation 频率调制偏差frequency-response correction 频率反应更正frequ