本文论述了牡丹江市市区空气污染的时间变化规律，并针对牡丹江市的空气污染突出了建议。
This article discussed the rule of air pollutant changed by the time in MuDanjiang cantonal, and gave the suggestions on controlling the air pollution.
本文论述了牡丹江市市区空气污染的时间变化规律，并针对牡丹江市的空气污染突出了建议。
This article discussed the rule of air pollutant changed by the time in MuDanjiang cantonal, and gave the suggestions on controlling the air pollution.
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