The chief features of this kind of pump are the wider range of working pressure, the higher pumping speed at the higher pressure and the higher maximum forepressure.
这种泵的主要特点是：工作
宽、在较高下有较大抽速、最大出
较高。
)前
,排出力,出力The chief features of this kind of pump are the wider range of working pressure, the higher pumping speed at the higher pressure and the higher maximum forepressure.
这种泵的主要特点是：工作宽、在较高下有较大抽速、最大出较高。
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