Pollution of water resource, water environment and the technology of purifying water are regarded increasingly.
水资源与水环境的污染以及现代水处理技术是人们日益关心重视的研究课题。
In some sense that duck droppings is a kind of resource instead of pollution.
从某种意义上来说，鸭粪不是一种污染物，而是一种资源。
It is a kind of pollution sources, and a kind of potential resource.
它既是一种污染源，又是一种潜在的资源。
Water resource shortage and water pollution are serious in our country.
我国是水资源短缺和水污染严重的国家之一。
Water resource shortage and water pollution are serious in our country.
我国是水资源短缺和水污染严重的国家之一。
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