Conclusion The particles in a closed environment may have some effect on human health and instruments.

结论密闭环境中的悬浮颗粒物对人体健康中医和仪器设备可能肿瘤产生一定影响.

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Whether or not fitted with air - conditioning , closed environment, air pollution is very serious.

不论是否装有 空调设备, 封闭式环境的空气污染相当严重.

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