| 单词 | acceleration |
| 释义 | acceleration /ak sel'euh ray"sheuhn/, n. 1. the act of accelerating; increase of speed or velocity. 2. a change in velocity. 3. Mech. the time rate of change of velocity with respect to magnitude or direction; the derivative of velocity with respect to time. [1525-35; < L acceleration- (s. of acceleratio). See ACCELERATE, -ION] |
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