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针对目前国内只注重调节空调列车车内温度的现状，强调必须重视车内的空气品质；并提出了改善空气品质的措施。
In view of the current situation in China, which only focuses on adjusting the temperature inside the air-conditioned train car, it is emphasized that the air quality inside the car must be emphasized and the measures to improve the air quality are put forward.