您要查找的是不是：
- Investigation on Present Situation of Harm to Roadbed Drainage Facilities 路基排水设施病害现状调查及预防措施
- He came to look at the drainage. 他是来检查排水设备的。
- The drainage system has been aged. 排水系统已经老化了。
- roadbed drainage 路基排水
- The earthquake made the roadbed cave in. 地震后路基沉陷了。
- The drainage of the town is not good, some of the pipes are broken. 城里的排水系统不好,有些水管断裂了。
- The surface of a road; a roadbed. 路的表面;路床。
- The analysis of roadbed economy. 路基经济性分析;
- We must dig a drainage ditch to run off the water. 我们得挖一条排水渠把水排掉。
- Put up your hands to build a home of the roadbed. 搭起双手筑成你回家的路基。
- The town's drainage is very efficient. 这城市的排水系统很好。
- A drainage passage, as to a culvert. 排水沟排水通道，如阴沟
- Is there adequate drainage where needed? 需要排水的地方其排能是否足够?
- Pancreatic abscess obviously requires drainage. 胰腺脓肿显然需要引流。
- The area has good natural drainage. 这个地区有良好的天然排水系统。
- The bricks were bedded in sand to improve drainage. 沙里埋入砖块，以改进排水系统。
- Acid Drainage Killing Some Fish in Ky. 河流遭酸性排放,鱼和昆虫死亡。
- A foundation of crushed rock or a similar substance for a road or railroad; a roadbed. 路基碎石或类似物质做的道路或铁路的基础; 路基
- Both uses tend to improve drainage. 两者对排水都有改进作用。
- The Study of Highway Roadbed Earthwork Construction Method. 高等级公路路基土方施工方法的研究与探讨。
