key river basins
英
美
- 重点流域
双语例句
- National standards would have stricter limits for discharge of pollutants in key river valleys.
提高重点流域水污染物的国家排放标准。 - Pollution control in key river valleys and regions was strengthened,and the environmental quality improved in some cities.
重点流域和区域污染防治得到加强，部分城市环境质量有所改善。
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