单选题The most suitable pump for oily water separator feed duties is （）.Aa reciprocating pumpBa vane pumpCa centrifugal pumpDa triple screw pump
单选题
The most suitable pump for oily water separator feed duties is （）.
A
a reciprocating pump
B
a vane pump
C
a centrifugal pump
D
a triple screw pump
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