 |
| |||
| advance timbering; cantilever timbering; console support; console timbering; fore support; forepoling; overhanging beam; telescoping support | |||
|
передовая крепь : 13 短语, 3 学科 |
| 军队 | 1 |
| 地质学 | 1 |
| 矿业 | 11 |
|
| |||
| advance timbering; cantilever timbering; console support; console timbering; fore support; forepoling; overhanging beam; telescoping support | |||
|
передовая крепь : 13 短语, 3 学科 |
| 军队 | 1 |
| 地质学 | 1 |
| 矿业 | 11 |