unified development
| specification system
| unified development abbr. | |
| tech. | 统建 |
| specification system abbr. | |
| IT | 规格说明系统 |
| |||
| 统建 | |||
|
unified development : 4 phrases in 3 subjects |
| Aviation | 1 |
| China | 1 |
| Technology | 2 |