节水降能是党和政府实施可持续发展的重大课题,北京市在这方面显得更为突出。但目前市场上的节水器具品种繁多,而这些产品大部分除了做工和外观的区别以外,基本原理大同小异,存在着压力低、易堵塞等缺点且价格偏高,很难为老百姓所接受。 Water saving is a major issue for the party and the government in implementing sustainable development. Beijing is even more prominent in this respect. However, a great variety of water-saving appliances are currently on the market, and most of these products except for the difference between workmanship and appearance, the basic principles are similar, there are low pressure, easy to plug and other shortcomings and high prices, it is difficult for the people to accept.