1、To ensure teamwork and efficient operation of the hotel through team spirit development.
促進(jìn)和發(fā)揚(yáng)團(tuán)隊(duì)精神，保證酒店各項(xiàng)工作高效有序地進(jìn)行。

2、Adjustable impeller and the clearance between the boards to ensure efficient operation of the pump.
可調(diào)節(jié)葉輪與護(hù)板之間的間隙，保證泵的高效運(yùn)行。

3、has realized a safe, reliable and efficient operation of the system
實(shí)現(xiàn)了系統(tǒng)安全、穩(wěn)定、高效運(yùn)行

efficient operation翻譯