·2,447,543篇论文数据,部分数据来源于NoteExpress
Mcadam found that soil itself could bear the weight of the road when it was compacted as long as it was dry.
但是麦克亚当发现只要土壤干燥,压结实后自身就能承受公路的重量。
youdao
应用推荐
模块上移
模块下移
不移动