·2,447,543篇论文数据,部分数据来源于NoteExpress
Welding nails, steel connection pair, rigging, bridges, coal, oil, wind power tower base assembly, stadiums ears (and beyond) bi-directional rotation screw, anchor, rope!
焊钉、钢结构连接副、索具、桥梁、煤田、油井、风力发电塔基组合件、体育场馆双耳内(外)旋双向螺杆、锚具、钢丝绳!
youdao
应用推荐
模块上移
模块下移
不移动