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1·More will not cause secondary pollution.

更不会造成二次污染。

2·The factory produce secondary pollution.

工厂制造出的二次污染。

3·We should control the secondary pollution.

我们应该控制二次污染。

4·Anode surface treatment without secondary pollution.

阳极表面处理，不造成二次污染。

5·In sales, problems of secondary pollution and labels and signs exist extensively.

在销售过程中普遍存在二次污染和标签标识问题。

6·The composting treatment is a comprehensive way, but apt to cause secondary pollution.

堆肥方式是综合处理，但容易造成二次污染。

7·No secondary pollution, no need to add flocculant, chemical oxidant and no secondary pollution.

无二次污染：不需添加絮凝剂，化学氧化剂，无二次污染。

8·In ozone producing industry, this technology really realizes innocuousness and harmlessness without secondary pollution.

在臭氧制造行业，该技术真正实现了无毒、无害、无二次污染。

9·The trials show the cement retarding agent acceptable at lower energy consumption, lower cost and no secondary pollution.

试验表明，该新工艺可生产出合格水泥缓凝剂产品，并且能耗低，成本低，无二次污染。

10·The process has the advantages of large throughput, high recovery rate and good product quality without secondary pollution.

该工艺具有处理量大，回收率高，产品质量好，无二次污染等优点。