天体测量学
astrometry
Astrometry and celestial mechanics
天体测量学和天体力学
astrometryand celestial mechanics
辐射致发冷光计量测量学
radiophotoluminescence dosimetry
测量电量
measuring electric quantity
低频电量测量
low frequency output measurement
电量测量
electric parameter measurement
measuring quantity of electricity
electric power measurement
Electric parameters measure
measurement of electrical quantity
Power measurement
electrical measurement
非电量测量
non-electricity measurement
非电量电测
non electricity quantity determination