decelerate
/diːˈseləreɪt/verb
no obj.
1- (of a vehicle, machine, or process) begin to move more slowly（机车, 机器, 过程）减速。
1.1
- with obj. cause to move more slowly使减速：
four steps are required to decelerate the motor.
要使发动机减速须有四个步骤。
派生词
deceleration
noundecelerator
noundecelerometer
/diːˌseləˈrɒmɪtə(r)/ noun词源
late 19th cent.: from DE- (expressing removal) + a shortened form of ACCELERATE.