美国石油协会美国石油学会美国油量计量标准
american petroleum institute
复合压力和真空计量表
compound pressure and vacuum gauge
静态膨胀法真空标准
Static expansion vacuum standard
标准计量方法
Standard Method of Measurement
大尺寸计量标准
Large dimension metrology standard
电能量计量计费
power telemeter and settlement system
电能量计量计费系统
power energy billing system
telemeter reading system
the System of Measuring and Billing of Power Energy
tele meter reading system
估计量标准误
standard error of estimator
光学计量标准器
Optical metrology standard set