A whirl of sparkles leaped up the flue.

旋转的火花窜出烟囱。

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As sulphur dioxide emission from power industry made up 45 percent of national total in 2003, it is an urgency to speed up the flue duct desulphurization in the power industry.

2003年我国电力工业二氧化硫排放占到我国二氧化硫排放总量的45%，因此，电力工业烟气脱硫迫在眉睫。

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If the flue overdraws, all the heat goes right up the chimney.

如果风管抽风过度的话，热量就会从烟囱直接跑掉了。

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