结合历年监测数据，深入分析了南湖水环境质量变化的趋势。
Combined with many years monitored data of Nanhu lake, the changing tend of the water environmental quality was deeply analyzed.
土壤环境质量变化较大，土壤环境污染物种类和数量不断增加，发生的地域和规模在逐渐扩大，危害也进一步深入。
Soil quality changes in a larger environment, soil type and environmental pollutants increase in the volume of the geographical scale and gradually expand further hardly.
分析和评价铁路隧道对水环境的影响，从而从水环境质量变化角度提出工程控制措施，对实际工程具有一定的指导意义。
It is certain significance to assess the impact of water environment on railway tunnel, provide control measures of construction from the point of the variation of water quality.
分析和评价铁路隧道对水环境的影响，从而从水环境质量变化角度提出工程控制措施，对实际工程具有一定的指导意义。
It is certain significance to assess the impact of water environment on railway tunnel, provide control measures of construction from the point of the variation of water quality.
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