A、cavitation
B、electrolysis
C、abrasion
D、corrosion
更多“Pitting in the suction areas of a centrifugal pump bronze impeller is usually caused by （）.”相关的问题
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A、A.increased engine back pressure B、B.sulfuric acid corrosion C、C.surface pitting of the turbocharger D、D.moisture impingement on the turbocharger compressor blade
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