We also give the probability distribution formula of hitting time about birth-death processes.
同时给出了关于生灭过程的击中时的概率分布公式。
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。
Estimations of the moments of the hitting time by Brownian motions on general Riemannian manifolds are also obtained.
估计了一般黎曼流形上的布朗运动关于球面击中时的各阶矩。
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。
Especially before exams, most students spend a lot of time hitting the books to get good grades.
尤其在考试前，大多数学生为了取得好成绩而花许多时间努力学习。
Some of my friends were sent away to camp, and the city offered free tennis lessons, but I remember spending an inordinate amount of time in the backyard hitting a tree with a stick.
我的一些朋友会被送去夏令营，城市会提供免费的网球课程，但我记得我花了相当多的一部分时间，在自家后院用棍子击打一棵树。
The ratio fell sharply as the baby boomers reached their prime saving years, hitting a low in 2000 at the time of dotcom mania.
当婴儿潮时代出生的人到达以存钱为主的年龄段时，比值急速下降，在2000年的网络狂潮中迎来低谷。
I went to an engineering school where a lot of people spent a lot of their time hitting the books.
我去过一个工程学校，那儿很多人把他们大部分的时间花在学习上。
You should be able to see the mean execution time and transactions per second graphs by hitting this servlet.
你应该能够看到平均执行时间和每秒事务数。
But even if the six agree, he added, "hitting everyone else with something this major, it's going to take some time to be digested."
他又补充道，“但即使这六个人同意这足以刺激其他人的大事，这也需要一段时间才能完全接受。”
It is important to set a reasonable warning threshold (typically 75-90 percent of the quota) so that users have sufficient time to reduce the size of their mail database before hitting the quota.
设置一个合理的警告门限是重要的(通常为限额的75%- 90%)，以便在达到限额之前用户有足够的时间去减少他们的邮件数据库的大小。
His fingers fly over the keyboard, hitting all the wrong buttons, making all the wrong decisions, and in no time files are deleted, old copies are saved over new, and other unfortunate hijinx ensue.
他的手指在键盘上移动，敲击所有错误的按键，做出所有错误的决定，文件被删除了，旧的拷贝覆盖了新的文件，继而发生了其他不幸的事情。
Not reading through your email an extra time before hitting send.
在发送之前没花额外的时间通读你的邮件。
I think it was in French, so it wasn't really hitting all the scientific community of the time in any major way.
我印象中是发表在一个法语杂质上，所以它并没有在当时的科学界的,主流领域中取得反响。
This new view goes a long way to address some of the headaches of quickly switching between businesses, as you seem to spend less time hitting the "back" button.
这种全新视图可以提高在商家之间的切换速度，同时会减少点击“回退”键，从而解决了困扰大家很长时间的问题。
The time to sell isn't now, with the Dow industrials hitting five-year lows.
现在不是抛售的时候，因为道指已经跌到了五年低点。
We produced more food about the same time that we saw a global food crunch of a kind bigger than any we've seen in 25 years hitting communities around the world.
在我们生产更多的食物的同时，我们看见世界一种比在过去25年冲击世界各地更大的粮食危机。
But if fiscal stimulus used to be likened to stepping on the gas pedal, then the Obama package is like hitting the gas and the brakes at the same time.
但是如果把财政刺激比作踩油门的话，奥巴马的这个计划就像同时踩在了油门和刹车上。
Workers are racing against time to stop the Gulf of Mexico oil slick hitting the coast of the southern United States.
工人们正争分夺秒地阻止墨西哥湾的漏油流向美国南部海岸。
Is basically the force of these molecules hitting that membrane per unit time, times the number of molecules hitting.
本质上来说压强是这些分子，单位时间轰击薄膜的力，乘以轰击的分子数。
"Our CARDS were speed and time, not hitting power," Lawrence wrote.
“我们的王牌是速度和时间，而非火力，”Lawrence写道。
The consumer electronics giant set record after record on Tuesday, hitting all-time highs with its quarterly profit and revenue, its stock price, and with iPhone and iPad sales.
这家消费电子产品巨擘周二连创纪录，其季度利润和收入、股价以及其iPhone手机和iPad平板电脑的销量都纷纷创出历史新高。
"We can simulate the performance of the queries with new stats, but we cannot truly simulate the number of concurrent users hitting at the same time," Matthews says.
“我们可以模拟使用新语句的查询的性能，但我们无法真正模拟同时点击的并发用户数量，”Matthews说。
(Kitco News) - After hitting all-time highs, gold prices could backtrack a bit next week, but the downside for the yellow metal will be limited because of global uncertainty and U. s. dollar weakness.
(Kitco新闻)——下周金价触及历史高点后，将会小幅回落，但由于美元弱势和受国际不确定因素影响，黄金下行空间有限。
(Kitco News) - After hitting all-time highs, gold prices could backtrack a bit next week, but the downside for the yellow metal will be limited because of global uncertainty and U. s. dollar weakness.
(Kitco新闻)——下周金价触及历史高点后，将会小幅回落，但由于美元弱势和受国际不确定因素影响，黄金下行空间有限。
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