pollution control policy是什么意思

网络释义

用法例句

For the peculiar environment of the construction site, having overcome many technical difficulties and through careful calculations in making pipe line pressure test plan, PCP pipe of DN 2000 used in the engineering of the water supply from the Yellow River to Hohhot city is designed and put into use for the first time in North China region, providing some valuable experiences for the future.

呼和浩特市引黄供水工程中DN2000PCP管道是华北地区首次设计和使用,针对其施工现场的特定环境,经 过周密、严谨的计算,制定管道试压方案,攻克多项技术难关,为今后的施工积累了宝贵的经验。