random action meaning in English

胡乱动作
轻率行为
随机动作
随机酌

Nature is a pseudo - player who takes random actions at specified points in the game with specified probabilities
自然是一种虚拟参与人，它在博弈的特定时点上以特定的概率随机选择行动。
Because the wind load is a random action , the statistical parameters of structural response under this load can hardly obtained beforehand . however these parameters is necessary to klaman filtering as the preliminary condition . if not ? ot , this signal processing cannot be called the genuine real time optimum estimation
由于风荷载是一种随机作用，结构在这种荷载的作用下，结构响应的统计参数不可能事先得到，而这种参数却是kalman滤波的初始条件，也就不能实现真正的实时最佳估计。