If you randomize the events or people in scientific experiments or academic research, you use a method that gives them all an equal chance of happening or being chosen. 使随机化
verb [vt. 及物动词]vt. 使随机化;(使)作任意排列或不规则分布
The wheel is designed with obstacles in the ball's path to randomize its movement. 这个轮盘在小球的行进路线上设计了令其能够随机停下的障碍。