radio wave penetration system,无线电波透视仪

radioactive materials packaging,放射性物质包装

radioactive survey,放射性测量

radiodirection finder,无线电方位测定器

radiometer,辐射仪；辐射表

radiosonde,无线电探空仪

radiotheodolite,无线电经纬仪

radiowave penetration instrument,无线电波透视法仪器

rain proof instrument,防溅式仪器仪表

rainfall amount,雨量

rainfall intensity meter,雨量强度计

rainfallmeter,雨量强度计

raingauge,雨量器

raingauge receiver,承水器

raingauge shield,雨量器防风罩

Raman line,拉曼谱线

Raman shift,拉曼位移

Raman spectrum,拉曼光谱

ramp function,斜坡函数

ramp response,斜坡响应

ramp response time,斜坡响应时间

random access,随机存取

random disturbance,随机扰动

random error,随机误差

random event,随机事件

random failure,偶然失效

random noise,随机噪声；无规噪声

random process,随机过程

random signal,随机信号

random uncertainty,随机不确定度

random vibration,随机振动

range,范围

range-change device,范围转换器；量限转换器

range of load,负荷范围

range of strain,应变范围

range of stress,应力范围

range response time,范围响应时间

rangefinder,测距仪

ranging distance,测程

Rankine temperature scale,兰金温标

rangeability,范围度

rapid Fourier transform NMR correlation spectroscopy,快速傅立叶变换核磁共振相关波谱法

rapid TG-DTA unit,快速加热差示热分析仪/热天平

rate of change limiting control,变化率极限控制

rate of deformation,变形速率

rate of loading,加荷速率

rate of salt spray precipitation,盐雾沉降率

rate time,预调时间

rated accuracy limit primary current (of a protective current transformer),（保护用电流互感器的）准确度限定的额定一次电流。

Rated broad band random force,额定宽带随机激振动力

rated burden,额定负载

rated continuous thermal current,额定的连续热电流

rated dynamic current,额定动态电流

rated flow coefficient,额定流量系数

rated force under sinusoidal conditions,正弦态额定激振力

rated instrument limit primary current,仪表的额定极限一次电流

rated load,额定载荷

rated operating condition,正常工作条件；额定工作条件

rated operating range,额定工作范围

rated operating specification,额定工作规程

rated output,额定输出

rated primary current,额定一次电流

rated primary voltage,额定一次电压

rated range,额定范围

rated range of use,额定使用范围

rated secondary current,额定二次电流

rated secondary voltage,额定二次电压

rated short time thermal current,额定短时热电流

rated static longitudinal load,额定静态纵向负荷

rated static transverse load,额定静态横向负荷

rated transformation ratio (of a current transformer),（电流互感器的）额定变比

rated transformation ratio (of a voltage transformer),（电压互感器的）额定变比

rated travel,额定行程；标称行程

rated travel time,额定行程时间

rated tube current,额定管电流

rated tube voltage,额定管电压

rated value,额定值

rated valve capacity,阀额定容量

rated voltage factor,额定电压因数

rating attraction force,额定吸力

rating power consumption,额定功耗

rating test,标定试验

ratio chromatism,倍率色差

ratio controller,比值控制器

ratio meter,比率表

ratio of specific heat capacities,比热比

ratio of the pole spacing to the bore diameter of the pole pieces,极靴的间距与孔径比

ratio station,比值操作器

ratio thermometer,比色温度计

raw spectra,原谱

rawinsonde,无线电测风探空仪

reachability,可达性；能达性

reachable set,可达集；能达集

reachable state,可达状态；能达状态

reaction gas,反应气

reaction gas chromatography,反应气相色谱法

reaction interval,反应区间；反应程

reaction wheel,反作用轮