| [/əkˏseləˈreɪʃn; əkˏsɛləˋreʃən/] n [U] 用法:
1 making or being made quicker; increase in speed 加快; 促进; 加速:
an acceleration in the rate of economic growth 经济发展速率的增长. 用法:
2 (of a vehicle) ability to gain speed （指车辆）加速性能:
a car with good acceleration 加速性能良好的汽车. |