英语词汇“left-hand screw”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

> as lemmas

left-hand screw

left-hand screw n. a screw threaded so that it advances when turned anticlockwise; cf. right-hand screw n. at right hand n. and adj. Compounds.

ΚΠ

1795 Repertory of Arts 2 93 The screw E..has one end cut with a right hand, and the other with a left hand, screw.

1810 Belfast Monthly Mag. May 378/2 The two elevating screws at one side of the endless screw, are right hand screws, and those at the other side, are left hand screws.

1957 W. H. Armstrong Machine Tools for Metal Cutting xv. 277 A left-hand screw is one that will move into a nut when it is turned counterclockwise or to the left.

2001 S. Vogel Prime Mover (2003) vii. 138 Left-hand screws may be uncommon, but they aren't mere novelties like counterclockwise clocks.

extracted from left handn.adj.

as lemmas

单词	left-hand screw
释义	> as lemmas left-hand screw left-hand screw n. a screw threaded so that it advances when turned anticlockwise; cf. right-hand screw n. at right hand n. and adj. Compounds. ΚΠ 1795 Repertory of Arts 2 93 The screw E..has one end cut with a right hand, and the other with a left hand, screw. 1810 Belfast Monthly Mag. May 378/2 The two elevating screws at one side of the endless screw, are right hand screws, and those at the other side, are left hand screws. 1957 W. H. Armstrong Machine Tools for Metal Cutting xv. 277 A left-hand screw is one that will move into a nut when it is turned counterclockwise or to the left. 2001 S. Vogel Prime Mover (2003) vii. 138 Left-hand screws may be uncommon, but they aren't mere novelties like counterclockwise clocks. extracted from left handn.adj. < as lemmas
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