F
face to face dimension,端面距尺寸
facsimile seismograph,传真式地震仪
factory communication,工厂通信
factory information protocol,工厂信息协议
Fahrenheit,华氏度
Fahrenheit temperature scale,华氏温标
fail safe,换效安全
fail tree analysis,失效树分析
failure,失效
failure diagnosis,失效诊断
failure mechanism,失效机理
failure mode,失效率
failure recognition,失效识别
failure valve position,阀断源位置
failure cable,流线型拖缆
fall time,下降时间
falling coaxial cylinder viscometer,同轴圆筒下落粘度计
falling sphere viscometer,落球粘度计
false strain,虚假应变
fanning mill anemometer,叶轮式风速表
far field,远场
far infra-red radiant element,远红外副射元件
far infrared radiation,远红外辐射
Faraday cage,静电屏蔽
farinfrared spectrophotometer,远红外分光光度计
fast atom bombardment,（FAB），快速原子轰击
faster-than-real-time simulation,超实时仿真
fatigue,疲劳
fatigue characteristic,疲劳特性
fatigue failure,疲劳破裂
fatibue life,疲劳寿命
fatigue limit,疲劳极限
fatigue strain gauge,疲劳应变计
fatigue testing machine,疲劳试验机
fault,故障
feasibility,可行性
feasibility study,可行性研究
feasible cooordination,可行协调
feasible region,可行域
feature detection,特征检测
feedback,反馈
feedback compensation,反馈补偿
feedback control,反馈控制
feedback controller,反馈控制器
feedback elements,反馈元件
feedback gain,反馈增益
feedback loop,反馈回路
feedback path,反馈通路
feedback signal,反馈信号
feedforward,前馈
feedforward compensation,前馈补偿
feedforward control,前馈控制下
feedforward path,前馈通路
feedover,馈越
ferrodynamic galvanometer,铁磁电动系振动子
ferrodynamic instrument,铁磁电动系仪表
ferrograph,铁磁示波器
FET gas transducer[sensor],场效应（管）湿度传感器
fiber communication,光纤通信
fiducial error,引用误差
fiducial value,引用值；基值
field,字段；现场
field balancing,现场平衡
field balancing equipment,现场平衡设备
field coil,励磁线圈
field controller,磁场控制器
field data,现场数据
field desorption(FD),场解吸