Applied to various contrivances of the form of a lever: see quots. Obsolete.
| 单词 | θ214317 |
| 释义 | society > occupation and work > equipment > machine > parts of machines > lever > [noun] (29) swape1492 Applied to various contrivances of the form of a lever: see quots. Obsolete. lever1648 Mechanics. Adopted as the name for that type of ‘simple machine’ which is exemplified in the ‘lever’ (sense 1). It consists of a rigid structure of… vectis1648 A lever. Obsolete. sweep1657 Applied to various kinds of levers, or to a long bar which is swept round so as to turn a shaft. Subcategories:— weighted (2) — operated by foot (9) — others (9) — parts of (2) — system of (1) — point against which lever is placed (1) — extent through which lever may be moved (1) |
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