| 单词 | lazy-jack |
| 释义 | > as lemmaslazy-jack lazy-jack n. ‘a lifting device of compounded levers on the principle of the lazy-tongs’ (E. H. Knight Pract. Dict. Mech. 1875). ΚΠ 1875 E. H. Knight Amer. Mech. Dict. II. 1268/2 Lazy-jack. < as lemmas |
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