Firm contact or grip; a hold or position for advantageously exerting or applying power; mechanical advantage; leverage. Also figurative and in…
单词 | θ75662 |
释义 | the world > matter > physics > mechanics > force > [noun] > active mechanical force > ratio of load to force applied > by use of lever (3) purchase1711 Firm contact or grip; a hold or position for advantageously exerting or applying power; mechanical advantage; leverage. Also figurative and in… prise1751 The action of prising or levering something; an instance of this; (also) leverage. Obsolete. leverage1830 The power of a lever; the mechanical advantage gained by the use of a lever. leverage of a force (see quot. 1830). |
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