﹛﹛gyro balancing machine,陀螺測斜儀
gyro-theodolite,陀螺經緯儀
habitay,水下居住室[艙]
hair hygrograph,毛發濕度計
hair hygrometer,毛發濕度表
half bridge measurement,半橋測量
half-cell,半電池
half duplex transmission,半雙工傳輸
half-power point,半功率點
half-wave potential,半波電位
Hall effect,霍爾效應
Hall effect displacement transducer,霍爾效應磁強計；霍爾效應磁力儀
Hall effect tachometric transducer,霍爾效應式轉速傳感器
Hall element,霍爾傳感器
Hall type pressrue transducer,霍爾式壓力傳感器
hammering method,敲擊法
hammering type Brinell hardness tester,錘擊式布氏硬度計
hand ancmometer,手持風速表
handshake,握手
handshaking,同步交換；信號交換
handwheel,手輪机构
handy digital tachometer,手持式數字轉速表
hanging mercury electrode,懸汞電极
hard bearing balancing machine,硬支承平衡机
"hard",X-rays,硬射線
hardness,硬度
hardness prnetrator,硬度壓頭
hardness tester,硬度計
hardness transducer[sensor],硬度傳感器
hardware,硬件
harmonic,諧波
harmonic analysis,諧波分析
harmonic content,諧波含量
harmonic content of an a.c.power supply,交流電源的諧波含量
harmonic wave,諧波
harmonious control,和諧控制
harmonious deviation,和諧偏差
harmonious strategy,和諧策略
harmonious variable,和諧變量
HART Communication Foundation,HART通信基金會
hazardous substances mark,危險品包裝標志
head space gas chromatography,頂空气相色譜法
header byte,首標字節
heart sound transducer[sensor],心音傳感器
heat-capacity mapping mission(HCMM)熱容量制圖衛星
heat conducting,導熱
(heat)conduction,（熱）傳導
(heat)convection,（熱）對流
heat efficiency,熱效率
heat flow meter,熱流計
heat-flux differential scanning calorimeter,熱流型差示掃描量熱儀
heat-flux differential scanning calorimetry,熱流型差示掃描量熱法
heat flux transducer[sensor],熱流傳感器
heat of combustion,燃燒熱
(heat)radiation,（熱）輻射
heat treated glass window,熱處理玻璃觀察窗
heat unit(HU),熱單位
heat value,熱值
heated and/or cooled enclosed location,升溫和[或]降溫封閉場所
heater characteristic of X-ray tube,X射線管燈絲特性
heating by far infra-red radiation,遠紅外輻射加熱
heating curves,加熱曲線
heating curve determination,升溫曲線測定
heating curve determinaiton apparatus,升溫曲線測定儀
heating element,加熱器；加熱元件
heating quantity of bomb cylinder,彈筒發熱量
heating quantity of constant capacity on high position,恒容高位發熱量
heating rate,升溫速率
heating rate curves,加熱速率曲線
heavy and streamlined fish,重型流線型拖曳体
height equivalent to a theoretical plate,理論板高
height of tide,潮高
helical bellows,螺旋波紋管
heliograph,日照計；日光計
helium mass spectrometer leak detector,氦質譜檢漏儀
helium survey,氦气測量
Helmholtz coils,亥姆霍茲線圈
Helmholtz resonator,亥姆霍蔣共鳴器
hermetically sealed enclosure(Ex h),气密外殼（Ex h)
heterodyne analyzer,外差式分析儀
heteronuclear lock signal,异核鎖信號
hierarchical chart,層次結构圖
hierarchical control,遞階控制
hierarchical intelligence,分級智能
hierarchical parameter estimation,遞階參數估計
hierarchical planning,遞階規划
hierarchical structure,遞階結构
hierarchical system,分級系統；遞階系統
high dispersion diffraction image,高分散衍射象
high dynamic strain indicator,超動態應變儀
high e.m.f.potentiometer,高電熱電位差計
high electron energy diffractometer(HEED),高能電子衍射儀
high[elevated]temperature testing machine,高溫試驗机
high elongation strain gauge,大應變應變計
high energy varistor,高能電壓敏電阻器
high energy X-rays,高能X射線
high frequency dielectric splitter,高頻介電分選儀
high frequency fatigue testing machine,高頻疲勞試驗机
high-frequency titration,高頻滴定
high frequency varistor,高頻電壓敏電阻器
