单选题Which of the following pumps is most suitable for an oily water separator?（）Areciprocating pumpBvane pumpCmono pumpDaxial-flow pump
单选题
Which of the following pumps is most suitable for an oily water separator?（）
A
reciprocating pump
B
vane pump
C
mono pump
D
axial-flow pump
参考解析
解析：
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