velocity
n.迅速，快速
释义2：
velocity
/ vi5lCsiti /
◙ (pl. -ies)1. the speed of something in a given direction• 速度，速率 »the velocities of the emitted particles. 放射微粒的速率。 (in general use) speed• 速度 »the tank shot backwards at an incredible velocity. 坦克以令人难以置信的速度后退。 [亦作velocity of circulation] [Economics] the rate at which money changes hands within an economy• [经济] 周转率流通速度【语源】
1. late Middle English: from French vélocité or Latin velocitas, from velox, veloc-'swift'
俄语/英语字母转换