 |
| |||
| technical activities committee | |||
| 技术 活动 委员会: 4 phrases in 4 subjects |
| Automobiles | 1 |
| Earth sciences | 1 |
| General | 1 |
| Oil / petroleum | 1 |
|
| |||
| technical activities committee | |||
| 技术 活动 委员会: 4 phrases in 4 subjects |
| Automobiles | 1 |
| Earth sciences | 1 |
| General | 1 |
| Oil / petroleum | 1 |