acceleration
noun uk/əkˌsel.əˈreɪ.ʃən/ us/ekˌsel.əˈreɪ.ʃən/
[ U ]增速，加快;加速性能
the increase in something's speed, or its ability to go faster
An older car will have poor acceleration. 旧车的加速性能差。
High winds significantly hampered the plane's acceleration. 强风严重影响了飞机的加速。
[ S or U ]加速
the increase in the speed at which something happens
The acceleration in the decline of manufacturing industry began several years ago. 制造业的加速衰退从几年前就开始了。