·2,447,543篇论文数据,部分数据来源于NoteExpress
For guidance of construction and assurance of quality of soil compaction, a study was performed on the test method for the maximum dry density.
为指导施工和控制填土质量,研究了最大干密度试验方法。
youdao
应用推荐
模块上移
模块下移
不移动