| 单词 | upshifting | 
| 释义 | > as lemmasˈupshifting   ˈupshifting  n. ΘΚΠ society > travel > transport > transport or conveyance in a vehicle > driving or operating a vehicle > 			[noun]		 > driving or operating a motor vehicle > operating clutch or gears change1895 downchange1907 gear-changing1909 change-down1910 gear-change1912 change up1913 shift1915 declutching1925 slipping1925 upshift1951 double-clutching1954 upshifting1956 1956    W. H. Crouse Automotive Mech. 		(ed. 3)	 xxiv. 515/2  				Upshifting is controlled by both throttle opening and car speed. < as lemmas | 
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