China is a country with severe water shortage. The main problems of the water resources management are water pollution, low efficiency of water using, water waste and behind the management level.
中国是水资源严重短缺的国家，水环境污染、用水效率低、用水浪费和管理水平落后是我国水资源管理中存在的主要问题。
On basis of obtained results the following conclusions were made: (1) In consequence of controlled releases of low level radioactive -waste water, a steady specific ecosystem had formed.
结果表明：（1）在低放废水排放影响下，一个相对稳定的特定生态系统已经生成；
On basis of obtained results the following conclusions were made: (1) In consequence of controlled releases of low level radioactive -waste water, a steady specific ecosystem had formed.
结果表明：（1）在低放废水排放影响下，一个相对稳定的特定生态系统已经生成；
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