The influence of mutation probability on the mean first hitting time is analyzed theoretically.
从理论上分析了变异概率对平均首次命中时间的影响。
The distributions of first hitting time and last exit time of a sphere for multiply iterated Brownian motion are presented.
给出了多重迭代布朗运动关于球面的首中时的分布与末离时的分布。
Abstract: The distributions of first hitting time and last exit time of a sphere for multiply iterated Brownian motion are presented.
文摘：给出了多重迭代布朗运动关于球面的首中时的分布与末离时的分布。
Distributions of the first hitting place and first hitting time for a conditioned Brownian motion to a hyperplane as well as its maximum excursions before hitting the hyperplanes are given.
给出了一类条件布朗运动关于超平面的首中位置与首中时间的分布，也给出了在首中超平面之前条件布朗运动的极大游程的分布。
But since it? S early in the process, I? M still hitting many places for the first time, and it? S a challenge.
不过现在还处于开始阶段，我仍在持续的首次到访一些地方，这确实是个挑战。
The beating did not hurt (perhaps, as it was the first time, he was not hitting me very hard), and I walked out feeling very much better.
打的并不疼(可能是第一次，他没有用力打我)很快我就不在怕了。
The fruits rate a little plastic bar to keep them from hitting the bottom of the machine. But the crabs - not for the first time in their lives, but perhaps the last - aren't so lucky.
水果被绑上塑料防护条以防止其砸到机器底部，然而螃蟹们——不是生命中的第一次经历，但却是最后一次了——却没有这般幸运。
Once, my father ended up chasing me around the kitchen table, intent on hitting me for the first time in his life-and then he broke down crying.
有一次，从来不动手的父亲绕着餐桌追我，想要打我，然后他突然开始流泪。
Once, my father ended up chasing me around the kitchen table, intent on hitting me for the first time in his life-and then he broke down crying.
有一次，从来不动手的父亲绕着餐桌追我，想要打我，然后他突然开始流泪。
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