单词 | halfturning bolt |
释义 | > as lemmashalf-turning bolt Π 1868 Technologisches Wörterbuch III. 445/1 Pêne à demi-tour, der halbtourige Riegel. Half-turning-bolt. 1874 E. H. Knight Amer. Mech. Dict. I. 322/1 A half-turning bolt is one having a half-screw thread on one side and engaging in a similarly threaded socket. half-turning bolt half-turning bolt n. (see quot. a1877). ΚΠ a1877 E. H. Knight Pract. Dict. Mech. II. 1050 Half-turning bolt, one with a thread occupying one half of its cylindrical surface. < as lemmas |
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