The electrolytic process applying Ti-Ru electrode do not pollute environment and attribute to the clean production.

该方法没有废物产生，不污染环境，符合清洁生产。

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The results show that the process is a clean process of mold and core sand foundry and does not pollute environment.

实验结果表明，该工艺不污染环境，是铸造型芯砂的清洁生产工艺。

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In this way, the utility model can not pollute environment, and has the advantages of beautiful appearance and natural taste.

这样就不会因其使用而污染环境并且外形美观、口味自然。

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Event organizers have worked hard to ensure that the games will not pollute the environment.

VOA: special.2010.02.10

And in Florida, Ocean Boy Farms claims to be able to produce a marine shrimp that does not pollute the environment.

ECONOMIST: Fish farming

Whether this can be done in a way that does not pollute the marine environment unacceptably remains to be seen.

ECONOMIST: The tragedy of the commons, contd | The

The company rejects these claims, saying it will refill and replant the open pit once the ore has been extracted, and that all necessary care is being taken not to pollute the environment.

NPR: Masked Intruders Raid Greek Gold Mining Company