automatic block
| with
| polar frequency coded track circuits
| automatic block | |
| el. | 自动闭锁 |
| with | |
| gen. | 跟; 随着; 用 |
| busin. | 和…一起; 与…一道; 与…一起 |
| earth.sc. | 具有; 包括...... 在内 |
| polar-frequency coded track circuit | |
| tech. | 极频电码轨道电路 |
| |||
| 自动闭锁 | |||
| 自动闭塞 | |||
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automatic : 453 phrases in 44 subjects |