gather and delivery pump是什么意思 gather and delivery pump怎么读
gather and delivery pump的相关资料
gather and delivery pump的用法和样例
- An experiment was carried out to test the performance of the volute in a helico-axial gas-liquid pump at two rotational speeds.
蜗壳是螺旋轴流式气液混输泵的重要部件。
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