watt-hour

watt-hour capacity

[化] 瓦时容量

watt-hour constant of a meter

[电] 仪表的瓦特小时常数

watt-hour demand meter

[电] 瓦特小时需量计

watt-hour efficiency

[电] 瓦特小时效率

watt-hour meter

[电] 瓦特小时计