The city was even equipped with a drain system.
这个城市当时甚至还配有下水系统。
Build a model of a house water and drain system.
造一个房屋给排水系统的模型。
Now there is lower powe factor and larger reactive power loss in the drain system.
目前排水泵站系统普遍存在功率因数低、无功损耗大的情况。
You will need to drain the central heating system before you replace the radiator.
你得先把中央供暖系统的水排净再更换散热器。
Just open a hot water valve in a sink or shower and let the system drain.
我们只要打开浴缸或淋浴喷头的热水出水阀，把热水器的水放掉就行了。
Has the drain tile system been flushed?
排水管道是否进行过冲刷处理？
Periodical inspection and maintenance of water supply system, supplying pipe, tape and tank, drain pipe.
给水装置的管线、头、箱及排水管道的定期检查和维修。
To test system functions, please open the valves and drain water out of them.
开启阀门排水来检验系统功能。
To test system functions, please open the valves and drain water out of them.
开启阀门排水来检验系统功能。
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