单词 | span wire |
释义 | > as lemmasspan wire span wire n. each of the series of wires suspended across the route of a tram or trolleybus to carry the overhead electric wire. ΘΚΠ society > travel > means of travel > a conveyance > vehicle > public service vehicle > [noun] > trolley car or bus > overhead wires and attachments span wire1891 trolley-bar1891 pull-off1892 plough1894 trolley-pole1895 trolley-wire1895 trolley-ear1898 trolley-hanger1898 trolley-harp1904 feeder ear1924 1891 Electr. World 21 Mar. 225/1 In the case of side pole and span wire, construction poles should be placed at the points represented and a span wire run between them. 1963 A. T. Dover Electr. Traction (ed. 4) xxiii. 358 At curves the span wire must be on a level with the trolley wire, otherwise the hangar will be pulled out of the vertical. < as lemmas |
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