operating frequency
| range
| operating frequency | |
| bridg.constr. | 工作频率 |
| eng.geol. | 运转频率 |
| space | 工作 频率 |
| tech. | 运行频率; 操作频率 |
| range | |
| gen. | 一系列; 行; 排 |
| el. meas.inst. | 标称范围 |
| forestr. | 区域; 幅距 |
| forestr. од. | 全距 |
| sport. | 变化，变动 |
| |||
| 工作频率 | |||
| 运转频率 | |||
| 工作［运用］频率 | |||
| 运行频率; 操作频率 | |||
| 运用频率 | |||
|
operating frequency : 12 phrases in 10 subjects |
| Air defense | 1 |
| Aviation | 1 |
| Electric machinery | 1 |
| Electricity | 1 |
| Electronics | 1 |
| Geophysics | 1 |
| Information technology | 2 |
| Shipbuilding | 1 |
| Space | 2 |
| Technology | 1 |