A、A.They are less expensive
B、B.They are smaller for equivalent pumping ability
C、C.They pump more cargo in less time
D、D.All of the above
更多“Centrifugal pumps have what advantage(s) over reciprocating pumps?（）.”相关的问题
A、centrifugal pump is cheaper than reciprocating pump B、the size of centrifugal pump with same capacity is smaller than that of reciprocating pump C、centrifugal pump makes maintenance easier than reciprocating pump does D、all of the above
A、reciprocating pumps B、positive displacement pumps C、centrifugal pumps D、centripetal pumps
A、reciprocating pumps B、positive displacement pumps C、centrifugal pumps D、centripetal pumps
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