单词 | buttress thread |
释义 | > as lemmasbuttress thread buttress thread n. a screw thread in which one face of the thread is set (approximately) at right angles to the bolt or shaft. ΘΚΠ society > occupation and work > equipment > building and constructing equipment > fastenings > [noun] > screw > thread > types of thread worm1725 drunkenness1786 square thread1838 V-threada1877 buttress thread1882 knuckle-thread1887 1882 W. C. Unwin Elem. Machine Design (ed. 4) v. 117 The modified triangular screw thread..may be used. This is termed the buttress thread. 1930 Engineering 6 June 721/2 In asymmetrical threads, such as..certain buttress threads. 2010 J. A. Collins et al. Mech. Design Machine Elements & Machines (ed. 2) xii. 463 The buttress thread provides greater strength for unidirectional loads. < as lemmas |
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