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aire garbiko toki
environ.	空气洁净区 通过控制工业的主动排放和/或防止污染，交通改善计划的实施，以及国家为了减少机动车辆废气排放量和降低汽油挥发性而做的努力而实现的污染物形成显著减少的清新空气地区。