| 1. | Study on a new type of digital coding track circuit
一种新型的数字编码轨道电路 |
| 2. | Coding equipments of track circuit in railway station
铁路站内轨道电路电码化设备 |
| 3. | Specification for dimensions of track circuit insulation
轨道电路绝缘体的尺寸规范 |
| 4. | 25hz phase detecting track circuit microelectronic receiver
25hz相敏轨道电路微电子接收器 |
| 5. | Audio frequency overlay solid state track circuit
固态间频叠加轨道电路 |
| 6. | Application of mem in railway um2000 track circuit signal receipt
2000轨道电路信号接收中的应用 |
| 7. | Coded ac phase selective track circuit
交流电码相位选择轨道电路 |
| 8. | Specification for capacitors for railway signalling track circuits
铁路信号轨道电路用的电容器规范 |
| 9. | Ac power frequency track circuit
交流工频轨道电路 |
| 10. | Approach lighting track circuit
接近亮灯轨道电路 |
