centrifugal pumwith shrouded impeller的意思|示意
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带冠叶轮离心泵
centrifugal pumwith shrouded impeller的网络常见释义
闭式叶轮离心泵 centrifugal pumwith shrouded impeller 闭式叶轮离心泵 completely shrouded impeller 全闭式叶轮 ..