The stem pipe-space is closed, complete and succinct. With an actively retirement by its architect, it provides the coming pieces of art with a background of purity and elegance.

主干管径空间封闭、完整而简洁，建筑师在这里主动的退隐，为即将入驻的艺术品提供了单纯而优雅的背景。

youdao

He pointed at me with the stem of his pipe.

他用他的烟斗柄指着我。

《柯林斯英汉双解大词典》

Valves should be installed in the (stem) vertical position with the pipe flow horizontal only. For installations other than this, please consult factory when ordering.

阀门应该只能安装在水平流向的管线上，其阀杆应该垂直向上。如果需要其它方式的安装，请在订购阀门时咨询工厂。

youdao

The mermaid's intricate tresses, crowned with a garland of flowers, flow back to meet up with her finely wrought fish tail and the pipe's amber stem.

FORBES: Where There's Smoke, There Are Buyers