speedup

 Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++speed·up, speed-up /ˈspiːdʌp/ noun [countable usually singular]  an increase in the speed of something or in the rate at which a process happens 加速，增速speedup in a speedup in population growth 人口增长的加速

Examples from the Corpus

speedup• Anyone who thinks about the speedup of change must sense that it has a lot to do with modern technology.• But Democrats say the speedup would undermine the work of a commission that is developing standards for a new statewide test.• The speedup in the rate of change, especially within the past two decades, is well known.speedup in• a speedup in the economy

speed·up nounChineseSyllable  

something the Corpus in speed an of in increase the rate or

speedup
speed‧up , ˈspeed-up /ˈspiːdʌp/ noun [countable usually singular]
an increase in the speed of something or in the rate at which a process happens
    speedup in
    a speedup in population growth