| 单词 | crown gear |
| 释义 | > as lemmascrown gear crown gear n. Engineering a gear having teeth at right angles to the plane of the wheel; cf. crown wheel n. ΚΠ 1838 U.S. Patent 1,025 1/2 As the shafts vary from a straight line they operate as a bevel-gear until they arrive ar a right angle, when they operate on the principle of a crown-gear. 1918 F. D. Jones Mechanisms & Mech. Movements ii. 49 The crown gear..has several concentric rows of teeth. 2007 D. Erlewine Guitar Player Repair Guide (ed. 3) vi. 69 When you turn the tuner knob, you're turning a worm gear that's meshing with a crown gear connected to the string post. < as lemmas |
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