一般情况下，角型调节阀均采用正向安装，即底进侧出。

Under normal circumstances, angle-regulating valve are being installed, that is, at the end into the side.

youdao

一般情况下，角型调节阀均采用正向安装，即底进侧出。

Under normal circumstances, angle-regulating valve are being installed, that is, at the end into the side.

youdao