蒸汽流量表的选型
Steam flowmeter model selection
焓差法冷量计量收费装置
cooling-based metering and charging device based o
测量仪表的常数
constant of a measuring instrument
测量仪表的阻尼因数
ballistic factor of a measuring instrument
电测仪表计量装置
propotioning adevice of electric measuring instruments
电能计量表计
energy measurement instruments
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
基准计量仪表
reference measuring instrument
计量表计
metering electricity meter