In recent years, the water quality has been affected by human being activities, which lead to serious menace for drinking water protection of Kunming residents.

  • 松华坝水源是昆明市极为重要的饮用水源。近年来,由于人类活动对其水质产生了重大影响.昆明市居民饮水受到严重威胁。

  • 互联网摘选 2025-01-20 12:44:58

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