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只要改变人类的洗面方式每天能节约6 000万吨水一年能节约2.1 9亿吨水……随着经济的快速发展,水环境污染和水资源短缺的问题越来越突出,已经成为未来20年中国实现全面小康社会目标所面临的重大挑战之一。开篇列举的数字摘自姜立人先生在2005年世界水日发表的一篇文章,这是他用自己的发明验证后的节水统计数字。
As long as the human face can be changed to save 60 million tons of water per day, it can save 2.1 900 million tons of water a year. With the rapid economic development, the problem of water pollution and water shortage become more and more prominent and become the future. One of the major challenges China faces in achieving the goal of an overall well-to-do society. The numbers quoted in the opening paragraph are taken from an article published by Mr. Jiang Liren on World Water Day 2005, a water saving statistic that he verified with his own invention.