水，历来被称为生命之本。千万年来，它一直被看作取之不尽，用之不竭，并且是最廉价的一种资源。 然而进入２０世纪以来，随着人口猛增，再加上工衣业生产的大发展，用水量也是几何倍数地猛增。目前，世界的年耗水量已增加到７万亿立方米。不到１００年中，全球工业用水增加了 Water has always been called the essence of life. For thousands of years it has been seen as inexhaustible and as the cheapest source of resources. However, since the twentieth century, with the rapid population growth and the great development of the garment industry, the amount of water has multiplied geometrically. At present, the world’s annual water consumption has increased to 7 trillion cubic meters. In less than 100 years, global industrial water has increased