| 单词 | change-speed gear |
| 释义 | > as lemmaschange-speed gear change-speed adj. and n. now rare (a) adj. designating a gearing whose speed can be varied during operation, typically consisting of a set of differently sized gearwheels and a mechanism for switching between them, as change-speed gear, change-speed lever, change-speed mechanism, etc.; (b) n. a change-speed gear.Now the most common form of gearing found in motor vehicles and bicycles. ΘΚΠ society > occupation and work > equipment > machine > parts of machines > wheel > [adjective] > types of cogs or gears > enabling gear change change-speed1881 society > occupation and work > equipment > machine > parts of machines > wheel > [noun] > cog or gear > which allows change of speed or direction > parts of reversing lever1822 reverse lever1839 change-speed1881 reverse1882 Johnson bar1884 gate1906 synchromesh1929 hot shift1971 preselector1979 1881 Subject-matter Index Patents 1879 122/2 Change speed and differential driving-gear for bicycles. 1907 Daily Chron. 17 Aug. 7/5 For the next [cycle] tour that I make in company I shall insist on all machines being fitted with the useful change-speed. 1922 Times 20 June 8/5 The change-speed lever provides four forward positions.., a neutral and a reverse. 2002 G. Robson Ford Cortina 15 The big changes were a new type of gearbox and change-speed mechanism. 2008 A. Steimel Electric Traction ix. 137 In street-bound vehicles these problems are overcome by the clutch..and the change-speed gear. < as lemmas |
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