查询词典 elasticity of substitution

Perhaps the most distinctive feature of many administrative adjudications is the substitution of written evidence for direct oral testimony .

大概，许多行政裁决的最显著的特点是用书面证据代替直接的口头证言。

Substitution and by parts and find the primitive of f = 1/x sqrt(x^2 +3 suggestion: trig.

258页练习40（建议：三角代换和分部法）并求出f = 1/x sqrt(x^2 +3的原函数。

During the study, an unreported Pd-catalyzed cross coupling substitution reaction was observed, and the relative theoretic discussion was made. The mesmorphic properties of all these compounds were observed and measured by polarizing optical microscopy and differential scanning calorimeters.

论文通过钯催化偶联反应合成了十一个系列74个全新的环己基炔类液晶化合物，利用元素分析、气相色谱、液相色谱等方法分析了化合物的纯度，利用红外光谱、核磁共振和质谱等分析手段对化合物的结构进行了鉴定。

If the act of conversion is not to become a mere process of substitution, as in sleight-of-hand performances, the terminus ad quem must unquestionably in some manner newly exist, just as the terminus a quo must in some manner really cease to exist.

一个很重要的问题提出了自己的定义是否要进一步设以前根本不存在的最后一个极端的，因为它似乎是奇怪的是一个现有总站一现状，应转换成一个已经存在的总站终止，乙如果该法的转换是不流于形式，浮过程中的替代性，因为在花招-的第一手表演，总站终止必须无疑是在一些新的方式存在，正如总站一现状，必须以某种方式真的不复存在。

If the act of conversion is not to become a mere process of substitution, as in sleight-of-hand performances, the terminus ad quem must unquestionably in some manner newly exist, just as the terminus a quo must in some manner really cease to exist.

一个很重要的问题提出了自己的定义是否要进一步设以前根本不存在的最后一个极端的，因为它似乎是奇怪的是一个现有总站一现状，应转换成一个已经存在的总站终止，乙如果该法的转换是不流於形式，浮过程中的替代性，因为在花招-的第一手表演，总站终止必须无疑是在一些新的方式存在，正如总站一现状，必须以某种方式真的不复存在。

High yields of indazoles (70-85%) were obtained in the condensations of aldehydes with various substitution patterns with the exception of those possessing electron-donating groups in the 5-position and the unsubtituted o -fluorobenzaldehyde.

高产量吲唑(1970年至1985年%)获得了各种替代方式醛缩合的例外拥有电子基团的5位和unsubtituted 邻氟苯甲醛。

In fact, we could make the substitution and still wind up with the correct eigenfunctions and eigenvalues.

事实上，我们可以做这种代换而仍能绕弯得出正确的本征函数和本征值。

We found that the elasticities of substitution between land and capital in housing production in Taiwan vary among different areas and among different years.

结果我们发现住宅生产的替代弹性在不同地区与不同的年度之间有相当大的变化，因此可变替代弹性模型该是比较适当的。

This paper presents a variable substitution-permutation network cryptosystem The system controls the input and output of complete involutions by key, and gets many different substitutions.

可变置换控制的代替—置换网络密码系统利用密钥控制完全对合的输入输出，得到大量不同的代替。

The method is just like the QuikChange site-directed mutagenesis method except for its special primer. This pair of primers is composed of a long primer and a short primer which is central overlapped.Both of the Tm of 5\'sequence in long primer and Tm of 3\'sequence in short primer are above 66℃.The Tm of short primer is almost half of that of long primer.It is convenient to perform insertion or substitution mutation of DNA fragments larger than 20bp,In addition,it is highly applicable in research about the deletion mutation of DNA fragments larger than 2000bp.

我们实验室一直在寻找一种简单高效的可以用于基因的删除、插入及替代突变的方法，通过大量研究和实验发现，可以使用一种基于反向PCR原理，使用全新的引物设计的突变方法——&COP&突变法，该方法采用与QuikChange点突变法相同的操作步骤，其策略是设计一对中心重合的引物，长引物的5\'端序列和3\'端序列的Tm值均不低于66℃，短引物Tm值约为长引物一半，且与长引物中心重合互补。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48