The _____ compressor and its electrical motor are entirely housed in a gas-tight casing.A.

The _____ compressor and its electrical motor are entirely housed in a gas-tight casing.

A.open-type

B.hermetic

C.A and B

D.None of the above

请帮忙给出正确答案和分析，谢谢！

您可能感兴趣的试题

It was a __________ relationship between the boy and the man.A、mixB、confuseC、complex

答案解析
Before starting an air compressor, It should be _____.A.unloadedB.primedC.filled with wate

答案解析
The instruction describes completely the ____ and its safety basis.

答案解析
The council is refusing to ______ further information about the dispute and its settlement

答案解析
It is the ______ who organizes the cabinet and presides over its meetings.A．Prime Minister

答案解析
The United States lies between two oceans,______to its east and______to its west.A．the Pac

答案解析
Over the years it has become more and more _______ in the process of shaping social values and attitudes.

答案解析