radio direction finding
| data base
| radio direction finding | |
| avia. | 无线电定向、测向 |
| navig. од. | 无线电测向 |
| space | 无线电定向 |
| radio direction-finding | |
| gen. | 无线电测向 |
| space | 无线电测向 |
| radio directions finding | |
| nautic. tech. | 无线电测向 |
| data base | |
| environ. | 数据库 |
| math. | 数据基准 |
| met. | 数据栈 |
| nucl.pow. | 数据基础 |
| space | 资料库 |
| stat. | 数据库 |
| tech. | 数据基; 数据单元 |
| textile | 基本数据 |
|
radio direction finding : 31 phrases in 6 subjects |
| Air defense | 2 |
| Aviation | 2 |
| Electronics | 4 |
| Navigation | 1 |
| Space | 7 |
| Technology | 15 |