首页 英汉 汉英 英英 词组 用法 例句 同义词 写作 俚语 缩写 词源 词根 法汉 德汉 日汉 俄汉 韩汉 西汉 意汉 泰汉 越汉
| 单词 | planetary gear |
| 释义 | > as lemmasplanetary gear planetary gear n. Mechanics (a) an epicyclic gear; (b) any gearwheel whose axis revolves around another wheel; a planet wheel. ΚΠ 1860 Sci. Amer. 23 June 406/1 Upon the same shaft are two double-beveled gears, a a, which revolve loosely thereon in opposite directions, each engaging with a small planetary gear, b, which revolves loosely upon the stud, c, which is fast to the shaft, I. 1917 E. Butler Transmission Gears iii. 66 The first use of a planetary reducing gear as a transmission between a petrol motor and the driving wheel of an automobile, was made in 1888–9 by Edward Butler on his petrol cycle. 1975 Sci. Amer. Dec. 120/2 The upper end of the larger planetary gear engages a spur gear fixed to a turntable. 1991 New Scientist 1 June 24/3 Planetary gear modules can be combined to provide exposure times ranging from 1/30th of a second to 2 minutes. < as lemmas |
| 随便看 |
英语词典包含1132095条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。