| |||
| 系统支持服务 | |||
|
system support services : 10 phrases in 6 subjects |
| Air defense | 1 |
| Automobiles | 1 |
| Aviation | 2 |
| Electronic commerce | 1 |
| Electronics | 4 |
| Space | 1 |
| |||
| 系统支持服务 | |||
|
system support services : 10 phrases in 6 subjects |
| Air defense | 1 |
| Automobiles | 1 |
| Aviation | 2 |
| Electronic commerce | 1 |
| Electronics | 4 |
| Space | 1 |