中文

周凌宇,袁亚慧,卫军,等.一种防滚石与泥石流冲击的桥墩保护装置[P].湖南省:CN202022998425.X,2021-08-31.

Hits:

Central South University  All rights reserved  湘ICP备05005659号-1 Click:
  MOBILE Version

The Last Update Time:..