单选题Which of the listed conditions can lead to cavitation气穴in a centrifugal pump?（）AVapor pockets formed in the suction flow streamBRough easing volute surfacesCWorn wearing ringsDHeavy fluid in the flow stream
单选题
Which of the listed conditions can lead to cavitation气穴in a centrifugal pump?（）
A
Vapor pockets formed in the suction flow stream
B
Rough easing volute surfaces
C
Worn wearing rings
D
Heavy fluid in the flow stream
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