第四十条向大气排放恶臭气体的排污单位，必须采取措施防止周围居民区受到污染。

Article 40 Units that discharge fetor into the atmosphere must take measures to prevent the pollution of neighboring residential areas.

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有效防止细菌病毒、臭气、蚊虫及蟑螂经排水管进入室内。

The valve trap effectively prevents bacteria, germs, bad smell, mosquitoes and cockroaches getting into the house through the sewage pipes.

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软但坚固，它提供了极好的水汽输送，能极其迅速干燥，完全透气，防止臭气和发霉，并使靴子始终保持如此表现。

Soft but tough, it provides excellent vapor transport, is extremely quick drying, is completely breathable, resists odor and mildew, and keeps performing for the entire life of the boot.

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