曾经不过是第一复制因子的运输工具的一种生物，现在变成了第二因子的复印机。
A living creature, once just a vehicle of the first replicator, was now the copying machinery for the next.
这样增加了安全性，因为攻击者需要知道用户的口令，并且能够对提供第二因子的客户端进行访问，如e -mail账号或移动电话等。
Security is increased because an attacker needs to know the user's password and have access to whatever provides the second factor, such ane-mail account or cell phone.
成骨细胞分化所需的第二个重要转录因子是一种具有锌指结构的，对骨形成十分重要的转录因子。
A second important transcription factor required for osteoblastic differentiation is osterix.
人类是第一复制因子的运输工具，是第二复制因子的复制机器。
We humans were vehicles for the first replicator and copying machinery for the second.
Tn是方程式中第二个主要因子。
第二点是一种复制可以攀附利用另一种复制上去：就是一个复制因子（复制的信息）能够建立在其他的复制因子的产品（作为运载者或是作用者,vehiclesorinteractors）之上。
The second is that one kind of copying can piggy-back on another: that is, one replicator (the information that is copied) can build on the products (vehicles or interactors) of another.
第二章从长沙市既有条件出发，研究其影响长沙市道路景观环境的主要因子，包括环境因子、区位因子、文化因子；
The second chapter research on the main genes that affect roads in Changsha bases on present condition, which includes environment, location and culture genes.
我们不仅在方程中加了一个拟合因子，而且在逼近第二个初始条件时也加了拟合因子。
We not only take a fitting factor in the equation, but also put one in the approximation of second initial condition.
第二个假设是，神经生长因子-这将鼓励新的神经细胞的生长，但随着年龄的减少-帐户的下降，神经。
The second hypothesis is that nerve growth factors - which encourage new neural cell growth but which decrease with age - account for the drop in neurogenesis.
第二部分介绍带压力松弛因子的推进迭代方法；
The second presents the marching iteration method with pressure relaxation factor.
第二章为带权因子的保形曲线部分，分四节。
The second chapter, the conformal curves having weight factor, is divided four parts.
第二个模型称为双因子模型，它是在单因子模型的基础上加入了新的因子变量—便利收益率，并且假定便利收益率服从带有均值反转特性的O—U过程。
The first model is a simple one-factor model in which the logarithm of the spot price of the commodity is assumed to follow o-u process which has a mean reverting character.
第二个因子描述了黄浦江水对长江口水体的污染情况。
There are three factors which affected the variation of the elements in the Yangtze river estuary.
通过第二轮向专家咨询，对指标因子两两比较并采用层次分析法确定各项指标权重；
Then the author consulted with the experts about the index factor in the second round and the pairwise comparison using AHP to determine the index weight in the third round.
第二放大器用第二放大因子放大灵敏度已被调 整的像素信号。
The second amplifier amplifies the pixel signals, whose sensitivities have been adjusted, with a second amplification factor.
近年来，医院感染呈上升趋势，抗生素的应用成为医院感染的第二大危险因子。
In recent years, hospital infection is showing an upward trend. The application of antibiotics has become the 2nd dangerous causing factor.
第二章，浅析浅析和探讨科尔沁蒙古族萨满神歌所含生命崇拜因子，从而进一步探究科尔沁萨满神歌的生命意识。
In chapter 2 the writer analyses and probes into the life worship elements in Mongolian Shaman Song of God, and explores further the life consciousness contained in Mongolian Shaman Song of God.
第二 部份乃利用德尔菲（Delphi）技巧，采取二次问卷回馈的方式建立海堤 视觉景观评估因子。
The second step is to choose available evaluation factors for seawalls by using Delphi technique and a second questionnaire.
第二 部份乃利用德尔菲（Delphi）技巧，采取二次问卷回馈的方式建立海堤 视觉景观评估因子。
The second step is to choose available evaluation factors for seawalls by using Delphi technique and a second questionnaire.
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