这种阀门适用于水平或垂直的管道，关闭迅速有效。
Valves are designed to close quickly with positive shutoff in either horizontal or vertical pipe runs.
这些冷却空气通过两根垂直管道进入到机柜的顶部，然后在分流进入那些空气杆，这些空气杆是有序的排列着冷气释放口的长长的薄薄的管道。
The chilled air enters the top of a rack through two vertical standpipes, which branch off into air wands -long, thin pipes lined with vents that release cold air.
流量开关应该安装在水平管道或垂直管道上，每一侧至少有5倍管道直径的直线管道长度。
It should be installed in horizontal or vertical section of a pipe where there is a straight run of at least 5 pipe diameters on each side.
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