frequency selective
| surface
| frequency selective | |
| space | 频率选择; 选频 |
| surface | |
| dril. | 地表; 表面化 |
| dril. од. | 外表 |
| hydroel.st. од. | 外观 |
| math. од. | 曲面 |
| met. | 表面加工; 表面处理 |
| oil | 地表 |
| swim. | 浮出水面 |
| |||
| 频率选择; 选频 | |||
| |||
| 频率选择的 | |||
|
frequency selective : 48 phrases in 10 subjects |
| Air defense | 3 |
| Aviation | 2 |
| Communications | 6 |
| Electronics | 11 |
| Geophysics | 1 |
| Information technology | 2 |
| Nautical | 2 |
| Space | 11 |
| Technology | 7 |
| Telecommunications | 3 |