urban underground pipelines是什么意思 urban underground pipelines怎么读
urban underground pipelines的相关资料
urban underground pipelines的用法和样例
- Slurry pipe jacking was firmly established as a special method for the non-disruptive construction of the underground pipelines of sewage systems.
顶管施工泥浆被坚定地确立为一种特殊的方法非破坏性建设的地下管线的污水处理系统。
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