If any of return sludge pumps is in off mode, it will be regarded as standby unit. If fault is found on duty pump, the standby pump will be automatically change over.

没有启动的污泥回流泵作为备用泵，如主泵发生故障，备用泵自动切入。

youdao

In this paper, two-unit cold standby redundant repairable systems with multiple vacations of a repairman are studied.

本文研究修理工可多重休假的两相同部件冷贮备可修系统。

youdao

In this paper, a model about two-unit hot standby systems is studied.

研究了两不同部件热贮备系统的一个模型。

youdao

Indeed, Chile's military ties with Argentina are so close that the two countries have created a joint standby unit for international operations.

ECONOMIST: Chile

The 2100mAh battery powers the unit for about 16 hours of use (60 hours on standby) and can be charged to 70 percent capacity in about an hour.

ENGADGET: Topic: Mobile

The official said that, before the hostage incident, the unit had been headed to Senegal, where it was to be on standby for missions in Mali, but that it may now move elsewhere.

CNN: STORY HIGHLIGHTS