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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
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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
unbiased estimation,无偏估计
unbonded strain gauge,非粘贴式应变计
uncertainty,不确定度
uncertainty of measurement,测量不确定度
uncorrected result,未修正结果
uncoupled modes,非耦合振型
undampted natural frequency,无阻尼固有频率
undamped natural mode of vibration,无阻尼固有振动模态
under water acoustic measurment,水声综合测量仪
underdamping,周期阻尼；欠阻尼
undersea buoy system,水下浮标系统
understandability,可理解性
underwater absorption meter,水下吸收仪
underwater acoustic,水（下）声学
underwater acoustic communication set,水下通讯装置
underwater acoustic measurement,水声测量
underwater acoustic transducer,水声换能器
underwater camera,水下照相机
underwater communication system,水下通讯装置
underwater holography,水下全息摄影
underwater irradiance meter,水下辐照度计
underwater lighting system,水下照明装置
underwater movie camera,水下电影摄影机
underwater panoramic camera,水下全景照相机
underwater polarimeter,水下偏振仪
underwater radiance meter,水下辐射率计
underwater scattering meter,水下散射仪
underwater sound,水（下）声学
underwater sound integrated measuring set,水声综合测量仪器
underwater sound test tank,水声试验水池
underwater television camera,水下电视摄像机
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underwater towed system,水下拖曳系统
underwater towed vehicle,水下拖曳体
underwater transducer array,水声换能器基阵
underwater transmissometer,水下透射率仪
underwater vehicle,水下运载工具
underwater visibility,水下能见度
underwater window,水下“窗口”
undetermined components,非测组分
unearthed voltage transformer,不接地型电压互感器
uniaxial strain gauge,单轴应变计
uniform stability,一致稳定性
uniform temperature zone,均温区
uniform temperature zone length,均热带长度
uniformity of table motion,台面运动的均匀度
union nut,双端螺母
unit,单元；单位
unit(of measurement),（测量）单位
unit area acoustic impedance,声阻抗率
unit feedback,单位反馈
unit resolution,单位分辨
unit resolution mass,单位分辨质量
unit step function,单位阶跃函数
universal balancing machine,通用平衡机
universal gas chromatograph,通用气相色谱仪
universal head loss coefficient,通用压头损失系数
universal testing machine,万能试验机
universal toolmaker's microscope,万能工具显微镜
unmanned submersible,无人潜水器
unsaturated standard cell,不饱和式标准电池
unsteady flow,不稳定流
upper-air observation,高空观测
upper limit of the nominal of use for frequency,标称使用频率范围上限
upward (total) radiation,向上（全）辐射
upward terrestrial radiation,向上地球辐射
urea enzyme transducer [sensor],酶（式）尿毒传感器
urinary bladder inner pressure transducer [sensor],膀胱内压传感器
usable cross-section of the test channel,试验流道的可用横截面
usable minimum immersion depth,最小可用浸入深度
useful life,使用寿命
useful spectral range,有效光谱范围
user adjustment,用户调整
user layer,用户层
utility routine,服务程序；实用程序；实用例行程序
utility software,实用软件
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UV dosimeter,紫外线表
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电子类词汇(60)
