由于北京近几年投入大量资金进行水污染治理及再生水设施建设，通惠河、坝河、清河、凉水河水系的水污染已取得成效，城区水环境得到了明显改善。那么，"再生水"怎么说呢？

请看新华社的报道：

"In 2006, we recycled 46 percent of the treated water and the commitment on water treatment will be surpassed this year after a 10 billion yuan ($1.34 billion) investment in the city's sewerage system over the last decade," Wang Hongchen, chief engineer of the Beijing Drainage Group, told a news conference at the Qinghe plant.

北京排水集团总工程师王洪臣在清河污水处理厂介绍说，北京治理污水10多年来，共投入资金100多亿元进行水污染治理和再生水设施建设。2006年北京的再生水回用率已达到46%，今年这一比例将超过去年。

再生水为 "recycled/ treated water"； 污水处理为"sewage treatment"，水回收装置为"water reclamation plant"。
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