rocking arm pump是什么意思 rocking arm pump怎么读
rocking arm pump的用法和样例
- Centrifugal pumps are the most common pump power.
离心泵是最常见的动力式泵。 - The Company produced all kinds of vehicles pump-pump, pump Tuobeng tubes, and other parts, construction machinery and equipment leasing.
本公司生产各种车式泵泵管，拖泵泵管，及其他零部件，并可租赁建筑机械设备。
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