pump with opposed impellers
... 洗气泵; gas was你好ngpump 相对于叶轮泵;背靠背叶轮泵; pump with opposed impellers 箱筒抽空泵; barrel emptyingpump ...
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Back-to-back Impeller Pump
... 背景成分 background composition 背靠背叶轮泵 back-to-back impeller pump 背轮式联轴器 back-wheel type coupling ...
基于46个网页-相关网页
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