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一、问题的提出通过我们的观察和了解,发现现在城市洗车店冲洗汽车用的都是自来水,而且都是一次性使用,用水量十分大,这样的洗车不知浪费多少的自来水。有没有更好的洗车方法呢?我决定对城市洗车用水量,做一次调查和研究。二、调查方法上门调查和和街头访问。三、调查情况通过调查和走访,我发现一家洗车店每天洗车大约在20辆至30辆,最多可达到60辆车,冲洗每辆汽车最多用水50千克,最少也要10千克。如果冲洗每辆汽车平均按30千克计算,一家洗车店一天共冲洗40辆汽
First, the issue raised Through our observation and understanding, we found that urban car wash car wash all the tap water, and are one-time use, water consumption is very large, this car wash I do not know how much waste water. Is there any better method of car wash? I decided to do a survey and study on the amount of car wash water in the city. Second, the survey method Home survey and street visits. Third, the investigation Through investigation and visits, I found a car wash car wash every day about 20 to 30 cars, up to 60 cars, washing up to 50 kg of water for each car, at least 10 kg. If flushing an average of 30 kilograms per car, a car wash a total of 40 vehicles a day flush