| 单词 | trolley-rail |
| 释义 | > as lemmastrolley-rail trolley-rail n. a rail conveying current to the motors on an electric railway. ΘΚΠ society > travel > rail travel > railway system or organization > [noun] > track > types of rail > conductor rail on electric railway trolley-rail1898 conductor rail1900 middle rail?1905 1898 Trans. Amer. Inst. Electr. Engineers 1897 14 355 Trolley-rail. < as lemmas |
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