phase detecting
| track circuit
| phase detecting | |
| mil., air.def. | 鉴相 |
| track circuit | |
| commun. railw. од. | 轨道电路 |
| el. | 示踪电路; 轨道回路; 跟踪电路 |
| |||
| 鉴相 | |||
| |||
| 检相 | |||
|
phase detecting : 7 phrases in 5 subjects |
| Electric machinery | 2 |
| Electronics | 1 |
| Oil / petroleum | 2 |
| Rail transport | 1 |
| Technology | 1 |