| 单词 | guard cradle |
| 释义 | > as lemmasguard cradle guard cradle n. (see quot. 1924). ΘΚΠ the world > matter > physics > electromagnetic radiation > electricity > electrical power, electricity > distribution system > [noun] > earthed network guard cradle1924 guard net1924 1924 S. R. Roget Dict. Electr. Terms 102/1 Guard cradle or net, an earthed network of wires placed under overhead conductors at points where danger might be produced by their falling. 1940 Chambers's Techn. Dict. 393/1 Guard cradle, a network of wires serving the same purpose as a guard wire. Also called guard net. < as lemmas |
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