automatic block
with audio | frequency shift modulated track circuits
| automatic block | |
| el. | 自动闭锁 |
| frequency-shift modulated track circuit | |
| railw. од. | 移频轨道电路 |
| |||
| 自动闭锁 | |||
| 自动闭塞 | |||
|
automatic : 256 phrases in 15 subjects |
| Business | 9 |
| Chemistry | 1 |
| Customs | 1 |
| Foreign trade | 2 |
| Geotechnics | 1 |
| Insurance | 21 |
| Law | 31 |
| Leather | 6 |
| Mechanics | 2 |
| Pediatrics | 3 |
| Public security | 7 |
| Sealing | 18 |
| Shooting sport | 2 |
| Textile industry | 151 |
| World trade organization | 1 |