drain tap 放水旋塞 ; 排水泵 ; 放水龙头
low vacuum drain tap 低真空级排气阀
radiator drain tap 散热器放水开关
reservoir drain tap 储存器排放龙头
case drain pressure tap 箱体排油压力分接头
h igh vacuum drain tap 高真空级排气阀
drain n tap 排气阀门 ; 放水旋塞
In particular, a tub with the tap running and the drain open.
特别是，一个水龙头和排水口都打开的浴缸。
Once the water is shut off inside, go outside and open the outside taps as well. This will drain any water remaining in the pipe or in the tap, so there's nothing to freeze.
一旦关闭这只阀门切断室内水路后，立即到室外打开水龙头，排掉积存在管子里或者水龙头里的水，以确保无可结冰的物质。
Daisy was in the bathroom. She was brushing her teeth and the tap was on. Water was pouring into the washbasin and vanishing down the drain.
黛西在浴室里。那时她正在刷牙，但是水龙头开着。水流入水槽，消失在下水道中。
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