Excessive oil foaming in the crankcase of a refrig
Excessive oil foaming in the crankcase of a refrigeration compressor is most likely to occur when the compressor
A.has run continuously for a long period
B.suction pressure is below normal
C.oil level is below normal
D.starts after a long idle period
请帮忙给出正确答案和分析，谢谢！
参考解答
41j***779
2024-06-14 22:34:20
正确答案：D
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