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节水喷头科学技术的魅力在于,一般人不敢想的事,它敢想!一般人不敢做的事,它敢做!草坪上的喷头,喷出的水面是圆形的,天经地义,从来如此。可是,太原市十二中学的盖宇和李岩同学却
The charm of the science and technology of water-saving nozzles lies in the fact that most people dare not think about it and dare to think about it. What ordinary people dare not dare to do is to dare to do it! The nozzles on the lawn are circular and well-armed. It has never been so. However, Gai Yu and Li Yan of the 12th Middle School in Taiyuan City