 |
| |||
| 预裂爆破法 | |||
| 预裂切割爆破预裂爆破是沿切割缝布置一排预裂孔，先行起爆后首先沿预裂孔形成一条预裂缝，然后非保留部分再进行爆破破碎和拆除。由于有了预裂缝，需要保留部分得到了保护 | |||
The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">Add | The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">Report an error
| Get short URL | Language Selection Tips