In the refrigeration system, a shortage of refrigerant is indicated byA.the compressor short cycling on high pressure cut out switchB.high suction pressureC.high head pressureD.bubbles in the sight glass
In the refrigeration system, a shortage of refrigerant is indicated by
A.the compressor short cycling on high pressure cut out switch
B.high suction pressure
C.high head pressure
D.bubbles in the sight glass
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输气站——又称为压气站。核心设备和建筑：压缩机、压缩机车间。Gas station -- also known as compressor station. Core equipment and construction: compressor, compressor workshop.