Excessive oil foaming in the crankcase of a refrigeration compressor can result in （）.<br>A:overheated compressor bearings<br>B:excess lube oil viscosity<br>C:carbon deposits on the compressor piston rings<br>D:wax crystals forming in the lubricant

Excessive oil foaming in the crankcase of a refrigeration compressor can result in （）.
A:overheated compressor bearings
B:excess lube oil viscosity
C:carbon deposits on the compressor piston rings
D:wax crystals forming in the lubricant

出自：海船船员证

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