 |
| |||
| 就业保障; 办公大楼防盗安全措施 | |||
| office security: 14 phrases in 10 subjects |
| Air defense | 2 |
| Aviation | 3 |
| Business | 1 |
| Exhibitions | 1 |
| International Monetary Fund | 1 |
| Nautical | 1 |
| Rail transport | 1 |
| Space | 1 |
| Technology | 1 |
| United States | 2 |
|
| |||
| 就业保障; 办公大楼防盗安全措施 | |||
| office security: 14 phrases in 10 subjects |
| Air defense | 2 |
| Aviation | 3 |
| Business | 1 |
| Exhibitions | 1 |
| International Monetary Fund | 1 |
| Nautical | 1 |
| Rail transport | 1 |
| Space | 1 |
| Technology | 1 |
| United States | 2 |