齿轮泵带负荷停车时，亦可防止泵倒转而在其输出管道内产生局部真空。

Gear pump to stop loading machine, can be in the output pipe to prevent pump reverse, and create a partial vacuum.

youdao

齿轮泵带负荷停车时，亦可防止泵倒转而在其输出管道内产生局部真空。

Gear pump to stop loading machine, can be in the output pipe to prevent pump reverse, and create a partial vacuum.

youdao