电测量仪表
electrical measuring instrument
电测量仪表检定装置
electrical measuring instrument verification devic
电测仪表计量装置
propotioning adevice of electric measuring instruments
测量电量
measuring electric quantity
单一制电量电价
One-part Electricity Tariff
电量表计设备
electricitym etering equipments
电量电价弹性矩阵
price elasticity matrix
price elasticity matrix of demand
电能计量电表
electric energy measure meter
二次仪表电路
secondary instrument’s circuit