Joint System
| Program Office
| joint system | |
| archit. | 节理系统 |
| eng.geol. | 节理系 |
| hydroel.st. | 节理系 |
| program office | |
| avia. | 计划办公室 |
| |||
| 节理系统 | |||
| 节理系统 | |||
| 节理系 | |||
| 裂隙组; 裂隙系 | |||
|
Joint System : 180 phrases in 23 subjects |