| 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. | Railway station coding of continuous track circuits specification 铁路车站电码化技术条件 |
| 7. | Application of mem in railway um2000 track circuit signal receipt 2000轨道电路信号接收中的应用 |
| 8. | Coded ac phase selective track circuit 交流电码相位选择轨道电路 |
| 9. | Railway fixed equipment . track circuits 铁路固定设备.铁路轨线 |
| 10. | Specification for capacitors for railway signalling track circuits 铁路信号轨道电路用的电容器规范 |