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| 单词 | jaw-wedge |
| 释义 | > as lemmasjaw-wedge jaw-wedge n. U.S. a wedge used to tighten the axle-box in the axle-guard of a railway truck. ΚΠ 1864 Webster's Amer. Dict. Eng. Lang. Jaw-wedge, a wedge to tighten the axle-box in an axle-guard. 1875 E. H. Knight Amer. Mech. Dict. II. 1212/1 Jaw-wedge, a wedge to tighten the axle-box in the jaw or guard of a railway car-truck. < as lemmas |
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