单选题Pitting in the suction areas of a centrifugal pump bronze impeller is usually caused by （）.AcavitationBelectrolysisCabrasionDcorrosion
单选题
Pitting in the suction areas of a centrifugal pump bronze impeller is usually caused by （）.
A
cavitation
B
electrolysis
C
abrasion
D
corrosion
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