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。
Based on the sensitive response of living organisms to pollutants, early warning biological system detects pollution accident quickly.
生物早期警报系统根据活生物对污染物的灵敏反应，快速确认污染事件。
The concept of the early-warning and emergency response system for sudden water pollution accidents is put forward herein.
提出了以预警应急系统应对突发性水污染事故的构想。
The concept of the early-warning and emergency response system for sudden water pollution accidents is put forward herein.
提出了以预警应急系统应对突发性水污染事故的构想。
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