单词 | messenger wire |
释义 | > as lemmasmessenger wire messenger wire n. = messenger cable n. ΘΚΠ the world > matter > physics > electromagnetic radiation > electricity > electrical power, electricity > distribution system > [noun] > suspension cable messenger wire1898 messenger cable1916 1898 E. J. Houston Dict. Electr. Words (ed. 4) 849/2 Messenger wire of aerial cable. 1916Messenger wire [see messenger cable n.]. 1948 Man. Uniform Traffic Control Devices (U.S. Pub. Roads Admin.) iii. 117 All overhead cable shall be supported by a suitable aerial messenger wire whenever there is a span of more than 30 feet. 1984 Railway Age Mar. 64/1 Catenary consists of messenger wire at 26 1/ 2 feet above the track and contact wire at 21 1/ 2 feet. < as lemmas |
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