The structure of pump is simple; the efficiency is high, with certain exhaust quantity and with no motion, having the movement character which is more ideal.
泵结构简单，效率高，有确定的排量且无波动，具备较为理想运行特性。
The structure of pump is simple; the efficiency is high, with certain exhaust quantity and with no motion, having the movement character which is more ideal.
泵结构简单，效率高，有确定的排量且无波动，具备较为理想运行特性。
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