瓦: tile; put tiles on a roof; c ...时常: often; frequently; now and a ...数: frequently; repeatedly编译时常数: compile time co tant; compile time constant热时常常数: thermal time constant热时常数: thermal time-constant延时常数: time delay constant运行时常数: run time constant起始瞬时常数: subtransient time constant灵敏度短时常数: short-time constant瓦时: watt hour; watt-hour; whr时常: often; frequently; (every) now and again 人们时常到这地方来洗海水澡。 the place is much frequented for sea-bathing. 我们时常碰头，交换意见。 we meet every so often and compare notes仪表的瓦特小时常数: watt-hour constant of a meter瓦时瓦时: watt-hour百瓦时: hectometer-hour京瓦时: gigawatt hour千瓦时: kilowatt hour (kwh); kilowatt-hour; kwhr仟瓦时: kilowatt hour瓦时；瓦: watt-hour (wh)瓦时表: watt-hour meter瓦时计: active energy meter; active meter; active)energy meter; integrating wattmeter; watt hour meter; watthour meter兆瓦时: megawatt hour常常；时常: often经常，时常: more often than not时常, 常常: often
