codirectional
| frequency assignment
| codirectional | |
| gen. | 平行的; 同向的 |
| frequency assignment | |
| rem.sens. | 频率分配 |
| space | 频率配置 |
| |||
| 平行的; 同向的 | |||
|
codirectional : 4 phrases in 2 subjects |
| Electronics | 2 |
| Telecommunications | 2 |