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。

Pollution of water resource, water environment and the technology of purifying water are regarded increasingly.

youdao

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。

Pollution of water resource, water environment and the technology of purifying water are regarded increasingly.

youdao