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domestic package,内销包装
dominant frequency,优势频率；主频率
Doppler current meter,多普勒海流计
Doppler effect,多普勒效应
Doppler flowmeter,多普勒流量计
Doppler radar,多普勒雷达
Doppler sonar,多普勒声纳
dose,剂量
dose rate,剂量率
dose rate meter,剂量率计
dosementer,剂量计
dot matrix printer,点阵式打印机
dot printer,点阵印刷机；点阵打印机
dotted line recorder,断续线记录仪
dotting time,打点时间
double acting positioner,双作用定位器
double-beam mass spectrometer,双束质谱计
double beam spectrum radiator,双光束光谱福射计
double bounce technique,二次反射法
double collectors,双接收器
double-cone viscometer,双锥粘度计
double crystal probe,双振子探头
double-dry calorimeter,双干式热量计
double-focusing mass spectroscope,双聚焦质谱仪器
double-focus X-ray tube,双焦点X 射线管
double focusing,双聚焦
double focusing analyzer,双聚焦分析器
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double focusing at all masses,全质量双聚焦
double-image tacheometer,双像速测仪
double inlet system,双进样系统
double insulation,双重绝缘
double-junction SQUID magnetometer,双结磁强计
double-magnification imaging,双放大倍率成象法
double pan balance,双盘天平
double-pass internal reflection element,双通内反射元件
double-path rato thermometer,双通道比色温度计
double-polarity method for calibrating thermocouple,热电偶双级检定法
double probe technique,热电偶双极检定法
double probe technique,双探头法
double tube mercury manometer,双管水银压力表
dulble tube thermometer,套管温度表
dulble vibration amplitude,双振幅
down time,停机时间
downhole instrument,下井仪器
downwar(total)radiation,向下（全）辐射
downward terrestrial radiantion,大气向下辐射
draft standard,标准草案
drag of towed vehicale,拖曳体阻力
drain boles,排泄孔
draught drying cabinet,电热鼓风干燥箱
drawing force,拉力
dredge,拖曳式采样器
drift,漂移
drift bottle,漂流瓶
drift card,漂流卡
drift plate drogue,漂流板
drifting buoy,漂流浮标
driving chart[paper]swaying,走纸偏差
driving device,驱动装置
driving torque,驱动力矩
drooping characteristic,下降特性
drop size meter,滴谱仪
drop test,跌落试验
dropping mercury electrode,滴汞电极
dropsonde,下投式探空仪
drosometer,露量表；露量器
drum recorder,鼓形记录仪
dry air,干空气
dry bulb,干球
dry gas meter,干式气体表
dry heat test,干热试验
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dry-bulb thermometer,干球温度表
drying cabinet on forecd convection,电热鼓风干燥箱
drying oven,干燥箱
DSC curve,差示扫描量热曲线
DSC meter,差示扫描量热仪
DSC-TC,差示扫描量热仪/热天平
DTA range,DTA,范围；差热分析范围
dual computer system,双并列计算机系统；复式计算机系统
cual-flame ionization detector,双火焰离子化检测器
dual purpose voltage transformer,双重用途电压互感器
duet,对（两个换能器的一种布置方式）
dump,转储
duoplasmatron ion source,双等离子体离子源
duplex(pressure)gauge,双工[双针]压力表
duplex transmission,双工传输
duplexed computer system,双计算机系统
durabilitym,耐久性duration,持续时间
duration of cycle,周期时间
duration of load,负荷保持时间
dust analyzer,尘量分析仪
dust counter,计尘器
dustproof instrument,防尘式仪器仪表
dustproof packaging,防尘包装
dust-proof solenoid valve,防尘型电磁阀
dwell time,停顿时间
dye marks,染色测流法
dye-penetrant testing method,着色渗透探伤法
dynamic accumulation error,动态累计误差
dynamic calibrator,动态校准器
dynamic characteristic calibrater,动态特性校准仪
dynamic characteristics,动态特性
dynamic deviation,动态偏差
dynamic display image,动态显示图象
dynamic error,动态误差
dynamic error coefficient,动态误差系数
dynamic gauging,动态容积测量法
dynamic load,动负荷
dynamic mass spectrometer instruments,动态质谱仪器
dynamic measurement,动态测量
dynamic microphone,电动传声器
dynamic model,动态模型
dynamic pressure,动压
dynamic pressure of fluid element,流体单元动压
dynamic pressure transducer[sensor],动态压力传感器
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dynamic range,动态范围
dynamix range of microphone,传声器动态范围
dynamic resolution,动态分辨力
dynamic response,动态响应
dynamic SIMS,动态二次离子质谱法
dynamic standard strain device,动态标准应变装置
dynamic stiffness,动刚度
dynamic stiffnesss of the moving element suspension,运动部件悬挂动刚度
dynamic stiffenss ratio,动刚度比
dynamic storage allocation,动态存储分配
dynamic strain,动应变
dynamic strain indicator,动态应变仪
dynamic thermomechanical analysis,动态热机械分析
dynamic thermomechanical analysis apparatus,动态热机械分析仪
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电子类词汇(14)
