查询词典 elasticity of substitution

However, in different primate groups, as well as in different CCR5 gene regions, synonymous substitution rate Ks and nonsynonymous substitution rate Ka were obviously different.

通过使用不同的时间标尺，我们估计了Ka和Ks在不同灵长类类群中的进化速率，并与它们在啮齿类中的进化速率比较。

The nonsynonymous substitution sites were more than synonymous substitution sites in human, house mouse and pig obviously.

人、家鼠和猪的非同义替换位点数明显高于同义替换位点数。

Based on the shortcomings of the COD determination method revised in National Standard, some improvement measures of the standard method, including improvement of slaking phrases, research of substitution catalysts and elimination of chlorine ion disturbance, are compared and discussed. Afterwards, some common substitution COD determination methods, such as correlation coefficient analysis method, electrochemistry analysis method, spectrophotometric analysis method and flow inject analysis method, are introduced.

在论述了国标中COD标准方法不足之处的基础上，本文就标准方法的众多改进措施分类进行了比较与探讨，包括消解方法的改进、替代催化剂的研究以及氯离子干扰的消除，然后介绍了相关系数法、电化学法、分光光度法和流动注射法等COD测定替代技术。

The results show that although both Ni substitution and Mg vacancies are effective in desorbing hydrogen at lower temperatures, the substitution of Ni at the Mg site is energetically more favorable than the formation of Mg vacancies. The Ni atoms of NiF2 can replace some Mg atoms of MgH2 systems, the reaction of NiF2+3MgH2=MgF2+Mg2NiH4 during mill process is accelerated, thus, MgH2 with the higher stability can be changed into Mg2NiH4. Because of a ternary hydride Mg2NiH4 with lower stability forming, the dehydrogenating properties on Ni doped MgH2 systems are improved.

结果表明：Ni替代Mg和创造Mg空位对MgH2体系解氢而言，均发挥有益作用，而形成Mg空位所需能量(6.51 eV)高于Ni替代Mg所需能量(2.12 eV)，表明低温下Ni替代Mg对MgH2体系解氢而言更有利，至此NiF2中的Ni替代MgH2中的Mg，有利于加速化学反应NiF2+3MgH2=MgF2+Mg2NiH4向右进行，使结构稳定的MgH2发生转变，生成结构不稳定的Mg2NiH4，这样体系解氢过程不是通过MgH2，而是转变为通过Mg2NiH4进行，因此，Ni掺杂提高了MgH2体系的解氢性能。

The algorithm meliorates the classification accuracy of the samples of metamorphic characteristic words including Pinyin substitution, homophone substitution and symbols insertion,etc.

算法提高了对于含有拼音替换、同音字替换、符号插入等变形特征词样本的分类准确率。

To detect QTL for the body fat-related carcass traits in beef cattle, the single strand conformation polymorphism assay was used for investigating the K232A substitution in DGAT1. Animals from 4 beef cattle populations (32 Luxi, 28 Jinnan, 32 Qinchuan and 26 Limousin × Luxi cattle) were used to estimate allele frequencies and gene substitution effects on several beef carcass traits.

为研究肉牛与体脂相关的胴体性状的数量性状座位，利用单链构象多态性方法检测了牛DGAT1基因K232A取代的2个等位基因K和A在实验群体中的分布频率，并分析了基因型对4个肉牛群体部分胴体性状的影响。

The intramolecular hydrogen bonding energies for some special systems were evaluated by means of the substitution method, cis-trans method, and supermolecular approach. The intramolecular hydrogen bonding energies predicted by the substitution method agree well with the values obtained by the cis-trans method and the supermolecular approach.

对一些特殊体系，使用取代法，cis-trans方法和超分子方法计算了氢键键能，取代法计算得到的氢键键能与cis-trans方法、超分子方法的计算结果相符。

The calculated results indicated that the HOMO and LUMO of the 2, 7-linked and 3, 6-linked carbazole trimers are both slightly destabilized on going from methyl substitution to sec-butyl substitution.

计算结果表明：2，7-和3，6-咔唑三聚物的HOMO和LUMO由甲基取代到仲丁基取代逐渐变的不稳定。

This water-quenched slag concrete research was appraised by substitution performance result in different substitution quantity of cement.

本研究并针对不同取代水泥量之混凝土之取代成效加以评估。

Under those conditions, different of 3-alkoxy-2-hydroxypropyl starch of different drgree of substitution of hydrophobic group were prepared.The substitution of hydrophobic groupof the products was determined by a method of Zeisel reaction and gas chromatography.

在此条件下，制备了一系列疏水基取代度不同的3-烷氧基-2-羟基丙基淀粉，利用Zeisel反应-气相色谱法测定了产物的疏水基取代度。

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