它由定差减压阀，液动换向阀和简式节流阀三部分组成。

It is certainly worse by the pressure reducing valve , hydraulic throttle valve and the short form of three parts.

youdao

它由定差减压阀，液动换向阀和简式节流阀三部分组成。

It is certainly worse by the pressure reducing valve , hydraulic throttle valve and the short form of three parts.

youdao