sliding-vane rotary vacuum pump的意思|示意
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旋片真空帮浦
sliding-vane rotary vacuum pump的网络常见释义
旋片真空泵 sliding-vane rotary vacuum pump 旋片真空泵 收藏 rotary piston vacuum pump 回转式柱塞真空泵; 滑阀真空泵 收藏 .