| 单词 | right-and-left screw |
| 释义 | > as lemmasright-and-left screw right-and-left screw n. a screw with threads at each end running in opposite directions. ΘΚΠ society > occupation and work > equipment > building and constructing equipment > fastenings > [noun] > screw > other types of screw wrench1552 needle screw1663 female screw1667 stop-screw1680 male screw1682 wood-screw1733 right and left handed screw1738 screw eye1787 claw-screw1795 screw shaft1818 union joint1819 union screw1820 right-and-left screw1821 binding-screw1828 coach screw1874 lag bolt1893 grub-screw1903 Allen screw1910 multithread1921 self-tapper1949 1821 Edinb. Philos. Jrnl. 5 130 A nut v, having a right and left screw, is employed to adjust the length of the rod k. 1877 R. W. Raymond Statistics Mines & Mining 288 Through these the coal is forced by a right-and-left screw. 2003 E. N. Ganic & T. G. Hicks McGraw-Hill's Engin. Compan. xiii. 13.11 All ordinary threads are right hand; seldom is there need for a left-hand screw in fastening, but the turnbuckle in Fig. 13.37 is a conspicuous example of the right-and-left screw. < as lemmas |
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