The backflow preventer must be supported and is not designed to carry full weight of the stand pipe.

防回流阀必须有所支撑， 不能用于承载立管的全部重量。

youdao

The lower part of the water outlet device is a stand pipe, and the stand pipe is connected with the flared mouth as an integrity.

漏水器下部为一竖管，竖管和喇叭口相连并形成一个整体。

youdao

The dresses hung on a pipe behind her juice stand and soon outsold her drinks.

WSJ: Fashion designer Lilly Pulitzer dies at 81