second-channel
| frequency
| second channel | |
| tech. | 第二信道 |
| frequency | |
| econ. | 频次数 |
| geophys. | 频率 |
| met. | 周率; 出现率; 发生次数 |
| radio.amat. од. | 频率 |
| sport. | 次数 |
| stat. | 频数 |
| tech. | 频率 |
| telecom. | 频次 |
| |||
| 第二信道 | |||
|
second-channel : 15 phrases in 5 subjects |
| Air defense | 2 |
| Desert science | 1 |
| Oil / petroleum | 7 |
| Radio | 1 |
| Technology | 4 |