| 单词 | step-rail |
| 释义 | > as lemmasstep-rail step-rail n. a tramway-rail with raised outside tread for flanged wheels. ΚΠ 1888 Encycl. Brit. XXIII. 506/1 The ‘step rail’..consisting of a flat surface..and a raised tread on the outer side. < as lemmas |
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