| 单词 | safety car |
| 释义 | > as lemmassafety car safety car n. (a) (U.S. Railways) a car preceding or following a railway carriage on a steep incline to prevent rapid descent should there be mechanical failure; (also) a car fitted with safety devices; (b) (Mining) a car or cage equipped with safety brakes or catches. ΚΠ 1828 Arcana Sci. & Art Index 241/1 Improved safety car. 1840 H. S. Tanner Canals & Rail Roads U.S. 258 Safety car, a machine which follows or precedes rail-road cars in their passage of inclined planes, and prevents their descent in case of accident to the machinery, or otherwise. 1921 D. F. Wilcox Anal. Electric Railway Probl. xxxi. 273 The safety car attacks the street railway problem at both ends—by reducing cost and by developing traffic. 2003 D. Rottenberg In Kingdom of Coal ii. 27 A safety car equipped with a brake attached to a cable—and manned only by a single courageous ‘runner’ to operate the brake lever. < as lemmas |
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