(a) a gear in which a cog wheel engages with a helically ridged shaft or pin; (also) the shaft or pin of such a gear; = worm-gear n. at worm, n.…
| 单词 | θ214366 |
| 释义 | society > occupation and work > equipment > machine > parts of machines > wheel > [noun] > cog or gear > with endless screw (5) screw gear1799 (a) a gear in which a cog wheel engages with a helically ridged shaft or pin; (also) the shaft or pin of such a gear; = worm-gear n. at worm, n.… screw wheel1825 the cog wheel in a worm gear; cf. screw gear n. (a). Subcategories:— endless screw (3) |
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