| 单词 | powerbox |
| 释义 | > as lemmaspowerbox powerbox n. (a) an electrical device such as a transformer or dynamo enclosed in a box-like housing; (b) British a signal box in which all functions are powered by electricity. ΚΠ 1895 Bull.-Sentinel (Decatur, Illinois) 9 Feb. 6/2 They broke all the windows in the [tram] car and destroyed the power box. 1909 Times 7 July 19/3 The signalling is operated from an electro-pneumatic power box at Central Station and four manual boxes. 1992 Mod. Railways Mar. 114/1 Resignalling..will replace 13 signal boxes by an extra panel in Leeds powerbox. 2004 Christchurch (N.Z.) Press (Nexis) 26 Jan. 3 a Two heavy rollers were started up and driven through the main gates to the yard. A powerbox outside the yard was damaged by the rollers. < as lemmas |
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