... 陶管排水 tile drainage 瓦管排水 clay pipe drainage; tile drainage 瓦管排水沟 tile drain ...
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Pipe drainage of groundwater are often developed in the pebbly clay slopes and are important in restricting groundwater level rising and in keeping slope stability.
含碎块石土质边坡中常发育有地下水排泄管道，他们控制地下水水位上升，对保持边坡稳定十分重要。
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