中文

一种精确控制采空区边界的爆破系统和爆破方法

Hits:

  • Release time:2024-12-20

  • Type of Patent:Invent

  • State of Patent:Authorized patents

  • Service Invention or Not:no


  • Zip Code:

  • Postal Address:

  • Email:

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

The Last Update Time:..