允许吸上真空高度Hs是指泵入口处压力p 1可允许达到的最大真空度。

Allows a high degree of vacuum suction on the Hs is p1 pressure pump at the entrance to allow the greatest vacuum.

youdao

允许吸上真空高度Hs是指泵入口处压力p 1可允许达到的最大真空度。

Allows a high degree of vacuum suction on the Hs is p1 pressure pump at the entrance to allow the greatest vacuum.

youdao