Oasis of the Seas, which was built in Finland, is so big its exhaust stack retracts so it can pass under bridges as it travels the world.
在芬兰建造的海洋绿洲号游轮可缩回巨大的烟囱，这样在环游世界时就可从桥下穿过。
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。
Open up the stack by-pass damper for the exhaust boiler.
开大废气锅炉烟道旁通挡板。
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