 |
| 使用要求: 25 phrases in 11 subjects |
| Automobiles | 1 |
| Aviation | 8 |
| Bridge construction | 1 |
| Business | 1 |
| Consulting | 1 |
| Economy | 1 |
| Explosives and Explosive Ordnance Disposal | 1 |
| General | 1 |
| Name of organization | 1 |
| Space | 5 |
| Technology | 4 |
|
| 使用要求: 25 phrases in 11 subjects |
| Automobiles | 1 |
| Aviation | 8 |
| Bridge construction | 1 |
| Business | 1 |
| Consulting | 1 |
| Economy | 1 |
| Explosives and Explosive Ordnance Disposal | 1 |
| General | 1 |
| Name of organization | 1 |
| Space | 5 |
| Technology | 4 |