| |||
| 复线自动闭塞 | |||
|
multiple-track : 37 phrases in 12 subjects |
| Advertising | 2 |
| Air defense | 2 |
| Aviation | 2 |
| Bridge construction | 6 |
| Communications | 3 |
| Earth sciences | 2 |
| General | 8 |
| Rail transport | 3 |
| Space | 1 |
| Technology | 6 |
| Telecommunications | 1 |
| Television | 1 |
| |||
| 复线自动闭塞 | |||
|
multiple-track : 37 phrases in 12 subjects |
| Advertising | 2 |
| Air defense | 2 |
| Aviation | 2 |
| Bridge construction | 6 |
| Communications | 3 |
| Earth sciences | 2 |
| General | 8 |
| Rail transport | 3 |
| Space | 1 |
| Technology | 6 |
| Telecommunications | 1 |
| Television | 1 |