节水即节能自来水并非“自来水”，它是通过取水、送水、加压等泵站，耗用相当数量的能源，从低到高、由近及远，一级又一级地提升和输送到千家万户的。因而，自来水本身就是一种“载能物质”，节水即节能，面对有限的水资源，过分开采和不合理使用已使一些城市水位下降，... Saving water is energy-saving Tap water is not “tap water”, it is by taking water, water, pressurized pumping stations, consume a considerable amount of energy, from low to high, from near and far, upgrade and delivery to Millions of households. Therefore, tap water itself is a kind of “load-bearing material”, saving water and saving energy. In the face of limited water resources, over-exploitation and irrational use have caused some cities to drop in water level, ...