... 井下引擎 downhole engine 水力活塞泵 downhole engine pump 井下冲蚀 downhole erosion ...
基于36个网页-相关网页
... downhand electrode ==> 平焊焊条 downhole engine pump ==> 井底水力活塞泵,井底水力活塞泵 downhole gas burner ==> 井底气体燃烧器,井底气体燃烧器 ...
基于16个网页-相关网页
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