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Terms for subject Communications containing In a | all forms | exact matches only | in specified order only
| English | Chinese |
| equipment in a cabinet | 柜内设备 |
| in advance of a signal | 信号机内方 |
| in advance of a signal | 信号机后方 |
| in rear of a signal | 信号机外方 |
| in rear of a signal | 信号机前方 |
| track circuits of same mode in a section | 区间同制式的轨道电路 |