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。
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 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。
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。
For the first time I lost young players, who were reaching maturity. I suffered. It's painful to lose key men you have invested a lot in.
这是我第一次失去还在走向成熟的年轻球员。我很难受。失去你投入了很多的核心球员是让人非常痛苦的。
At a distance of about 50 cm (0.5 m) the time delay for a signal reaching first one and then the other microphone from the side is approximately 1.5 msec (1 to 2 msec).
在距离约50厘米(0.5米)的时间延迟为一个信号，达到第一位，然后在其他麦克风从侧面大约是1.5毫秒(1到2毫秒)。
Argentina have taken over third place pushing out the Czech Republic and reaching the top three for the first time since the rankings were introduced in 1993.
阿根廷队凭借预选赛的突出表现将捷克队挤出前三名，这也是国际足联自1993年采用积分制以来阿根廷队首次跻身三甲。
"Kittens, I was right the first time" he thought, reaching in with both hands to pick one up.
“是小猫，我第一次猜对了。”他想，边把双手伸到箱子里想抱一只小猫出来。
"Kittens, I was right the first time" he thought, reaching in with both hands to pick one up.
“是小猫，我第一次猜对了。”他想，边把双手伸到箱子里想抱一只小猫出来。
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