open drain短语¹⁴⁴⁹⁷²⁺² 基本例句 明沟,明渠 Through the comparison of the construction schemes the dewatering with open drain, replacement and dynamic compaction are used for the treatment of saturated silt ground under groundwater. 对地下水位以下较深的饱和粉土地基处理，经过方案比选，采用明沟降水，并进行部分换填加基坑内强夯的处理方法。 cnki