transverse stiffness,横向刚度

transverse wave,横波

trap,收集器；陷阱

travel,行程

traversing of probe,前后扫查

trend analysis,趋势分析

trend method,趋势法

trend recorder,趋势记录仪

tri-colour thermometry,三色测温法

tri-component borehole magnetometer,井中三分量磁测井仪

trim,阀内件

triple tandem quadrupole instrument,三级串联四极质谱计

triple-point,三相点

striple-point of water,水三相点

triplet,三重布置；三重检测

tripod,三脚架

tripping device for plankton net,浮游生物网闭锁器

true value (of a quantity),（量的）真值

truncated Venturi tube,截尾文丘里管

trunk cable,干线电缆

T-S diagram (curve),温盐曲线

tube bubble,管状水准泡

tube end piece [tip],管端块[头]

tubular level,管状水准器

tumbling,翻滚

Tungsten-Rhenium thermocouple series,钨铼系热电偶

tungsten strip lamp,钨带灯

turbidimeter,浊度计

turbidity,浑浊度；浊度

turbidity transducer [sensor],浊度传感器

turbine flow transducer [sensor],涡轮流量传感器

turbine flowmeter,涡轮流量计

turbo molecular pump,涡轮分子泵

turbulence,紊流

turbulent flow,紊流

turn-off overshoot,断开过冲

turn-on overshoot,接通过冲

turnable stator,可转动定子

turns correction compensation,匝数更正（补偿）值

TV-camera system,电视摄像系统

two-colour(radiation) thermometer,比色温度计

two-colour temperature,比色温度

two-colour thermometry,比色测温法

two-dimensional location,平面定位；二维空间定位

two-step action,两位作用

two-step control,两位控制

two-step controller,两位控制器

two-terminal standard resistor,二端（钮）标准电阻器

two-way alternate communication,双向交替通信

two-way simultaneous communication,双向同时通信

stwo-wire temperature transmitter,两线制温度变送器

type,型式

type approval,产品定型；形式批准

type of action of an element or system,元件或系统的作用方式

type of protection of an instrument for explosive atmosphere, 仪表防爆形式

type of strain gauge,应变计（片）型式

type test,形式检验；形式试验

U-port,U型端口

U-tube manometer,U形管压力计

ultra-high vacuum,超高真空

ultra-high voltage electron microscope,超高压电子显微镜

ultralongwave spectrometer,超长波光谱仪

ultrasonic anemometer,超声波风速表

ultrasonic disc cutter,超声样品切割机

ultrasonic Doppler blood pressure transduce [sensor],超声多普勒血压传感器

ultrasonic flaw detection,超声探伤

ultrasonic flaw detector,超声探伤仪

ultrasonic flow transducer,超声流量传感器

ultrasonic flowmeter,超声流量计

ultrasonic hardness tester,超声硬度计

ultrasonic level measuring device,超声物位测量装置

ultrasonic levelmeter,超声物位计

ultrasonic methods,超声法

ultrasonic sensor,超声（波）传感器

ultrasonic thickness meter,超声（波）厚度计

ultrasonic transducer,超声换能器

ultrasonic wave,超声波

ultrathin section sample,超薄切片样品

ultra-violet and visible spectrophotometer,紫外可见光分光光度计

ultraviolet filter,透过紫外线的滤光片

ultraviolet hygrometer,紫外湿度表

ultraviolet lamp,紫外线照射装置

ultraviolet light transducer [sensor],紫外光传感器

ultraviolet photo-electron spectrometer,紫外光电子能谱仪

ultraviolet photo electron spectroscopy (UPS),紫外光电子能谱法

ultraviolet radiation,紫外线辐射

ultraviolet ray intensity meter,紫外线强度计

ultraviolet remote sensing,紫外遥感

ultraviolet-visible detector,紫外—可见光检测器

unaddressed operation,非寻址操作

unbalance,不平衡

unbalance component measuring device,不平衡分量测量装置

unbalance mass,不平衡质量

unbalance reduction ratio (URR),不平衡量减少率

unbalance response,不平衡响应

unbalance vector,不平衡矢量

unbalance vector measuring device,不平衡矢量测量装置

unbalanced output,非对称输出