This paper discussed some key issues of environmental impact analysis of traffic noise due to the small development area.
文章探讨了开发小区交通运输噪声环境影响分析中对车流量预测和噪声预测的几种技术方法。
Based on monitoring practice, this paper discusses and analyses some issues about the environmental monitoring work.
结合环境监测工作实际，就环境监测工作中的几个问题加以探讨。
The urgent situation of activated sludge reduction technology was illustrated in this paper from the view of current sludge treatment and disposal on environmental and economical issues.
从当前污泥处理和处置在环境和经济方面存在的问题出发，阐明了研究污泥减量技术的紧迫性。
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