单选题
发布日期:2021-03-22
turbine
screw
vaneejector
centrifugal
标签: pump lubricating oil pump
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The ()pump is usually used as the lubricating oil pump.
The ()pump is usually used as the lubricating oil pump.
The function of lubricating oil is to ()
The function of lubricating oil is to ()
The function of lubricating oil is to ().
The function of lubricating oil is to ().
The following options are all the functions of lubricating oil except()
The following options are all the functions of lubricating oil except()
In the event of failure of an auxiliary such as a lubricating pump, the standby ...
In the event of failure of an auxiliary such as a lubricating pump, the standby ...