Far facial leak distance and excellent anti-pollution ability ensures safe operation in bad condition and seriously polluted area.
表面泄露距离大，耐污性强，确保在恶劣条件和高污染地区安全运行。
The study on the soil environmental geochemistry in Chang-Zhu-Tan area shows that heavy metals in the industrial area were seriously polluted.
通过长株潭地区环境地球化学调查工作的实施，对长株潭地区土壤环境地球化学研究的工作方法进行了初步研究。
All of the water in the area has been seriously polluted.
这地区所有的水都已受严重污染。
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