| 单词 | guide-rail |
| 释义 | > as lemmasguide-rail guide-rail n. ΚΠ 1839 A. Ure Dict. Arts 501 The heckle bars..are..supported at their ends by fixed horizontal guide rails, on which they slide. 1882 Ogilvie's Imperial Dict. (new ed.) Guide-rail, in railways, an additional rail placed midway between the two ordinary rails of the track, and employed in connection with devices on the engine or carriages to keep a train from leaving the track in curves, crossings, or steep gradients. < as lemmas |
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