first pollution
英
美
- 一次污染
双语例句
- We should control the secondary pollution.
我们应该控制二次污染。 - No wastewater release in manufacture procedure, remaining and soil assimilate after degradation, no second pollution formed.
产品在生产过程中,无污水排出,降解后,残余物质与土壤同化,不会形成二次污染。
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