... 规范 standard; norm; specificatio ... 端吸离心泵 end suction centrifugal pumps 化工用立式直列式离心泵规范 vertical in-line centrifugal pumps for chemical process, specifications for ...
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End-suction centrifugal pumps 端吸离心泵 ; 离心式末端轴吸泵
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