| 单词 | track-circuit |
| 释义 | > as lemmastrack-circuit track-circuit v. (transitive) to equip with or make into a track circuit. ΚΠ 1935 Economist 22 June 1419/1 If every mile of line in use were ‘track-circuited’..a blunder by a signalman would be impossible; no train could be signalled forward unless the line really was clear. < as lemmas |
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