As an application, we obtain an expression for the mean and variance of the first reaching time t.
作为应用，得到了首达时t的均值和方差的表达式。
Knowledge of iron making penetrated into the forest and savannahs of West Africa at roughly the same time that iron making was reaching Europe.
大约在制铁技术传到欧洲的同时，西非的森林和大草原上也开始有了制铁的知识。
If successful, reaching the outer side of space could be as easy as flying abroad in a few years' time.
如果成功的话，在几年内，到达外太空就像飞到国外一样容易了。
Research by Smith and his coauthors has shown that the amount of food reaching the deep sea varies dramatically over time.
史密斯和他的合作者的研究表明：到达深海的食物的数量随着时间发生巨大的变化。
An optimistic reading of events would be that the countries involved want some extra time because they are serious about reaching a strong and binding agreement.
乐观的分析认为与会国希望有更充裕的时间，因为他们非常重视达成具有强约束力的协议。
Reaching to the customer at right time at right place is preferable.
在正确的时间地点和客户接触很重要。
As time passed, I've come to realize that enjoying the current moment is more important than reaching any goal.
随着时间的流逝，我已经逐渐意识到享受现今的时光比去达成任何目标都要重要。
On reaching the top of the hill, Tess paused and looked for a long time at the familiar green world of home.
到达山顶后，苔丝停下了脚步，久久地凝望着家乡熟悉的绿色世界。
Traffic to news sites globally started a steady climb about 6 a.m. Eastern time and peaked six hours later at noon, reaching nearly 12.1 million visitors per minute.
东部时间上午六点，全球新闻网站的流量开始稳步攀升，并于六小时后的午间达到峰值，每分钟有近1201万访问者。
Time stops altogether on reaching the 299, 792, 458 metres per second at which light zaps through a vacuum.
当物体运动速度达到299792458米每秒时，即达到光在真空中的传播速度时，时间整体停止。
But when there is little time pressure, and the choices are both fundamental and far-reaching, there is no reason to settle on a firm choice until the last moment.
但是当只有少量的时间压力，所要做的选择比较基础，影响深远的时候，那么不到最后时刻，没有理由作出坚定的决定。
He said the situation on the ground is dangerous and that there is no time to lose in reaching an agreement.
他表示，由于那里的情势十分危险，为了达成一项协议，没有时间去浪费。
Living conditions are hard in this concrete, steel and glass urban jungle, that has been cut away from nature a long time ago, with pollution reaching truly alarming levels.
在这个混凝土，钢铁和玻璃的都市丛林中，很久以前就与大自然无缘，污染达到令人震惊的程度，生活条件极为艰苦。
She cherished her time in the car alone, reaching into the wind for roadside stalks of fragrant sweet clover.
她珍爱与车独处的时间，安享带来路边三叶草甜蜜芳香的微风。
By the time an ambulance reached Dukes, an hour later, she was nearly dead from a blood clot in her lungs. She died soon after reaching the hospital.
当一辆救护车开到杜克斯身边时已经是一个小时以后，她由于肺部的血块已接近垂死，在送到医院后很快不治身亡。
But with a population as large as China's and over a long time horizon, the consequences of small differences in the fertility rate are far reaching.
但以中国这么大的人口总数，在经过较长时期过后，生育率的微小差别也会产生深远的影响。
It took some time to pinpoint the exact issue, but we realized that we'd lost some of the connection with our supporters - we weren't reaching out to them as often, and weren't listening as intently.
找到准确的原因需要一段时间，但是我们意识到我们丧失了与支持者的一些联系——我们没有向从前那样靠近他们，也没有认真倾听。
Most bosses spend a huge amount of time "messaging" and "reaching out", yet few are much good at it.
很多老板花费大量时间“输出信息”和“接受信息”，但极少有人做得很好。
The tradeoff between these two strategies often comes down to a simple question of time versus money--which is the critical path for you in terms of reaching "big" status.
两种模式的权衡通常可以归结为一个简单的资金和时间的问题，也就是说为了实现目标，哪种模式更适合你。
We have again embarked on an urgent mission aimed at reaching ambitious, time-bound goals.
我们再次着手一项紧急任务，目的是要实现有时间限制的雄心勃勃的目标。
But rhis is the first time a quantum walk has been performed with two particles and the implications are far-reaching.
但是这是第一次用两个完全相同的光子来完成量子游走，这个试验意义深远。
The happy meals have been enjoyed by investors in McDonald's, whose share price has risen during this period, reaching an all-time high in August.
而在这段时间里，麦当劳的投资者享受了由该公司股价上升而带来的“开心套餐”，麦当劳股价在八月创了历史新高。
Unsolicited goods can clog harbours or airports preventing vital supplies from reaching victims in time.
非需求的货物可能会阻塞港口或机场，会妨碍至关重要的补给及时送达受害者。
The Serbs are looking to make history by reaching the quarterfinals for the first time.
塞族人希望此役能第一次突入四分之一决赛，开创历史。
It's not just about reaching your workplace on time, working and then leaving on time.
这不仅仅指准时到达公司，准时工作然后准时下班。
Reaching agreement even earlier would save time and money.
越早达成合意越能省时省钱。
They have warned for the first time that modern medicine is reaching a point when it will no longer be able to function because antibiotics are powerless to fight life-threatening hospital infections.
他们第一次警告说，现代医学正在接近失去功能的极限，因为抗生素无力对付危及生命的院内感染。
Regular exposure to such messages could intensify over time, creating a vicious cycle that keeps women from reaching the top of high-status fields.
那么，如果频繁接触这样的信息，就会加深对歧视依然存在的看法，从而导致恶性循环，不利于女性提升自己的地位，问鼎事业的辉煌。
Granted, all this research and reaching out on your part will take time and patience (although it might also be kind of fun).
诚然，以上建议中提到的各项功课都需要付出大量的时间和耐心(但同时也可能会充满了乐趣)。
Granted, all this research and reaching out on your part will take time and patience (although it might also be kind of fun).
诚然，以上建议中提到的各项功课都需要付出大量的时间和耐心(但同时也可能会充满了乐趣)。
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