 |
| |||
| 应急频率; 呼救频率 | |||
| English thesaurus | |||
| |||
| A frequency for example 121.5 MHz used for transmitting emergency information. | |||
|
emergency frequency : 7 phrases in 2 subjects |
| Electronics | 1 |
| Telecommunications | 6 |
The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">Add | The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">Report an error
| Get short URL | Language Selection Tips