| 单词 | bow trolley |
| 释义 | > as lemmasbow trolley bow trolley n. a device for collecting the current from an overhead wire in electric traction. ΘΚΠ the world > matter > physics > electromagnetic radiation > electricity > transmission of electricity, conduction > conductor used in transport > [noun] > conductor of current from wires trolley1891 trolley-wheel1891 bow trolley1901 pantograph1907 bow1909 1901 Trans. Amer. Inst. Electr. Engineers 111 (Cent. Dict. Suppl. at Trolley) Bow trolley. 1902 Encycl. Brit. XXVIII. 98 On the continent of Europe considerable use has been made of bow trolleys, which consist of light metallic bow-shaped structures..running along on the under side of the wire against which they rub. < as lemmas |
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