first passage time meaning in Chinese

初过时间
首次经过时间

In the case of uncorrelated noises , it is shown that only the fluctuation of degradation reaction rate can induce a switch process , and the mean first passage time ( mfpt ) between the high concentration state and low concentration one is decreased when the noise intensity of degradation reaction rate is increased
可以看到源于蛋白质基本合成率的噪声强度不能引起基因状态的转变(即基因的开关)而源于降解率噪声强度则能够实现这种开关。当进一步研究在降解率波动作用下基因从一个态跃迁到另一个态的平均首通时间( mfpt )时可以看到此时随着这个波动强度的增加， mfpt是单调递减的。