expanded scale,擴展標度

expanded scale instrument,擴展標度尺儀表

expansibility factor,可膨脹性系數

expansion factor,膨脹系數

expansion chamber(of liquid-in-glass thermometer),（玻璃溫度計的）膨脹室

expected long term stability,預期的長期穩定性

expendable bathythermograph(XBT),投棄式深溫計

experimental intensity of scattered ion,散射离子的實驗強度

experimental standard deviation,實驗標准偏差

experimental standard deviation of the mean,平均值的實驗標准偏差

experimental temperature scale,經驗溫標

experimental variance,實驗方差

explosion-proof electric actuator,防爆型電動執行机构

explosion-proof instrument,防爆型儀器儀表

explosion-proof solenoid valve,防爆型磁閥

explosive limit of flammable gas,可燃气体的爆炸限

explosive sound source,爆炸聲源

export package,出口包裝

exposed junction,外露端

exposed junction type sheathed thermocouple,露端型鎧裝熱電偶

exposure,曝光量

exposure chart,曝光曲線圖

exposure time,曝光時間

extended rating current,擴展的額定電流

exteneed rating type curent transfomer,擴展的額定型電流互感器

extending extension lead,延伸型上閥蓋

extension lead,延長導線

extension lead error(of thermocouple),（熱電偶的）延長導線誤差

extension lead method,延長導線法

extensometer,引伸計

exterior package,外包裝

external critical resistance,外臨界電阻

external-convection column sensitive element,柱狀外對流敏感元件

external-convection ring sensitive element,環狀外對流敏感元件

external disturbance,外扰

exteranl gear,轉子齒輪

external lock signal,外鎖信號

external reference sample,外參比試樣

external-scale liquid-in-glass thermometer,外標式玻璃溫度計

external standard method,外標法

externally-piloted regulator,組合指揮器操作型自力式調節閥

extra-column effect,柱外效應

extraction lens,引出透鏡

extrapolated onset,外推超始點；外延始點

extreme temperature,极端溫度

face to face dimension,端面距尺寸

facsimile seismograph,傳真式地震儀

factory communication,工厂通信

factory information protocol,工厂信息協議

Fahrenheit,華氏度

Fahrenheit temperature scale,華氏溫標

fail safe,換效安全

fail tree analysis,失效樹分析

failure,失效

failure diagnosis,失效診斷

failure mechanism,失效机理

failure mode,失效率

failure recognition,失效識別

failure valve position,閥斷源位置

failure cable,流線型拖纜

fall time,下降時間

falling coaxial cylinder viscometer,同軸圓筒下落粘度計

falling sphere viscometer,落球粘度計

false strain,虛假應變

fanning mill anemometer,葉輪式風速表

far field,遠場

far infra-red radiant element,遠紅外副射元件

far infrared radiation,遠紅外輻射

Faraday cage,靜電屏蔽

farinfrared spectrophotometer,遠紅外分光光度計

fast atom bombardment,（FAB），快速原子轟擊

faster-than-real-time simulation,超實時仿真

fatigue,疲勞

fatigue characteristic,疲勞特性

fatigue failure,疲勞破裂

fatibue life,疲勞壽命

fatigue limit,疲勞极限

fatigue strain gauge,疲勞應變計

fatigue testing machine,疲勞試驗机

fault,故障

feasibility,可行性

feasibility study,可行性研究

feasible cooordination,可行協調

feasible region,可行域

feature detection,特征檢測

feedback,反饋

feedback compensation,反饋補償

feedback control,反饋控制

feedback controller,反饋控制器

feedback elements,反饋元件

feedback gain,反饋增益

feedback loop,反饋回路

feedback path,反饋通路

feedback signal,反饋信號

feedforward,前饋

feedforward compensation,前饋補償

feedforward control,前饋控制下

feedforward path,前饋通路