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单词 jaw-wedge
释义

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jaw-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.
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更新时间:2026/5/30 0:20:19