“main drain”可以造什么句,main drain造句
来源:语文精选馆 2W
By adjusting main drain off water pump flow quantity, this paper makes main drain off water equip running safe, economy, saving investment.
main drainage channel
Technology firms have focused on improving battery life. But the British experts say tackling the main drain on a gadget's power may give better results.
The main drain was blocked.