| |||
| 反向转撤器; 顺向道岔【铁】; 背向道岔; 背向转辙器 | |||
|
trailing point : 7 phrases in 6 subjects |
| Communications | 1 |
| Computer networks | 1 |
| Electronics | 1 |
| Rail transport | 1 |
| Sports | 1 |
| Technology | 2 |
| |||
| 反向转撤器; 顺向道岔【铁】; 背向道岔; 背向转辙器 | |||
|
trailing point : 7 phrases in 6 subjects |
| Communications | 1 |
| Computer networks | 1 |
| Electronics | 1 |
| Rail transport | 1 |
| Sports | 1 |
| Technology | 2 |