By developing new input air effect, removing and controlling internal source of pollution, we can improve IAQ.

通过发挥新风效应、消除和控制室内污染源等方法可以改善室内空气品质。

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A new way is given so that input coal and air volume is hard to measure can be solved.

在煤粉炉给粉量、风量难以测量的难题上给出了一种可行的思路。

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