advanced instrument
| approach system
| advanced instrument | |
| tech. | 先进仪器 |
| approach system | |
| mil., air.def. | 进场系统 |
| physiol. | 趋向系统 |
| |||
| 先进仪器 | |||
|
advanced instrument : 17 phrases in 6 subjects |
| Aviation | 8 |
| Earth sciences | 1 |
| Electronics | 4 |
| General | 1 |
| Plastic surgery | 1 |
| Space | 2 |