... 污染 contamination 污染报警系统 pollution warning system 污染标准指数 pollutant standard index ...
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groundwater pollution early warning system 地下水污染预警系统
·2,447,543篇论文数据，部分数据来源于NoteExpress
A pollution warning system is being established.
正在建立一个污染报警系统。
youdao
Beijing and much of industrial northern China are in the midst of a "red alert," the highest level in China's four-tiered pollution warning system.
北京及许多中国北方工业城市目前处于“红色预警”状态，这是中国污染预警系统四个级别中的最高阶。
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