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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If the input air quality is poor, can cause electromagnetic valve, the valve core oil pollution within the open mouth can't completely, the difficult open.

如果输入空气质量差，会造成电磁阀内产生油污，阀芯开启困难，阀口不能完全打开。

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A daily input of water, food, and energy of various kinds is matched by an output of sewage, solid waste, air pollutants, energy, and materials that have been transformed in some way.

日常摄入的水、食物和各类能量与输出的污水、固体废物、空气污染物、能源和经过某种转化的物质相匹配。

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Saturday's failure was caused by a software malfunction, while the error earlier in the month, which caused the system to shut down for 20 minutes, was caused by incorrect input by an adjoining air traffic control center.

CNN: Software glitch delays London flights