Often steam exhaust from the boiler goes into the stack, the force of the steam shooting out of it, helps drawl the fire more inside the flues.
通常锅炉排出的蒸汽会进入到烟囱，喷涌出的蒸汽由于气压差的引力，会把更多的火带入火管。
The story of how power has been harnessed from wind, steam and from inside the atom.
人类利用风能、水蒸汽能和原子能的故事。
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