短语词组短语watt hour demand meter 最大需量瓦时计watt -hour demand meter 翻译roentgen -hour-meter 仑琴var -hour-meter 无功电能表ampere -hour E meter 安培小时计remote kilowatt -hour-meter reading 远方自动抄表Watt -hour-meter with pulse output 带脉冲输出的瓦时表 返回 hour meter