对水泥混凝土排水管道的柔性接口方式进行了对比分析。
It is concluded that the adoption of the pipeline anti-corrosion and flexible joint is an effective way to prolong the service life of cement concrete drains.
作者根据混凝土排水管道工程的施工工序，提出了一些质量控制措施。
The author puts forward some quality control measures according to construction processes of concrete drain pipelines engineering.
在距离我工厂一英里的范围内，有不少制造不锈钢合金、混凝土排水管、梯子、定制印花t恤、电子元件和其他许多东西的工厂。
Within a mile of my shop there are factories that make stainless steel hardware, concrete drains and stairs, custom-printed T-shirts, electronic components and lots of other stuff.
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