main vent stack 主通气立管
specific vent stack 专用通气立管
tripod-frame supported vent stack 三腿钢架支承的排气筒
plumbing vent stack 通风竖管管道
secondary vent stackassistant vent stack 副通气立管
roof vent stack 屋顶通风烟囱
steam vent stack 排汽管
frame supported vent stack 四腿钢架支承的排气筒
The air then moves up though the space via the stack effect and is allowed to circulate above interior walls and out through an operable exhaust vent.
然后，空气通过堆栈效应移动，并且可以通过一个排气孔在室内墙壁和外部循环运行。
Flush system with hydrogen until required purity is reached. Vent all waste hydrogen through a flue or flare stack.
用氢冲洗设备，直到达到所要求的纯度。通过烟道或火把烟筒排出所有废氢。
Vent all waste hydrogen through a flue or flare stack.
通过烟道或火把烟筒排出所有废氢。
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