| 单词 | lifting screw |
| 释义 | > as lemmaslifting screw lifting screw n. a hook with a threaded shank which can be screwed into an object to facilitate its lifting (see also lifting adj.). ΘΚΠ society > occupation and work > equipment > lifting or hoisting equipment > [noun] > others polancre1356 spindle1398 wrest1584 handscrew?1660 sea-crab1689 lewis1743 crab1753 wheel and axle (also axis)1773 tippler1831 fall1834 outrigger hoist1835 lewisson1842 power hoist1869 tipper1870 lifting screw1885 powerlifter1909 bucket chain1911 bracket-crab- 1885 J. G. Horner Pattern Making xxii. 158 Figs. 206, 207 show two different forms of these [sc. rapping] plates, a being the plain hole for rapping, b the tapped hole for the reception of a lifting-screw. 1925 J. G. Horner Pattern Making (ed. 5) iii. 59 A central hole bored through the boss for the lifting screw. 1944 E. D. Howard Mod. Foundry Pract. Index 383/1 Lifting screw. lifting screw lifting screw n. a rotor operating in a horizontal plane so as to provide lift for a flying machine (see also lifting n.).extracted from liftingadj.< as lemmas |
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