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工作学习 / 学科技术讨论 / Multiple stage pumps -- high head (2000 to 4000 m) pump design for oil field applicationWe need an engineer to design this pump.
-topumps(Sleeping for ideas);
2010-1-30
{40}
(#5850505@0)
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PMed you.....
-hmm99(瞎折腾);
2010-3-6
(#5927988@0)