查询词典 elasticity of substitution

Comprehensive utilization of Chinese pennisetum raw material, not only may increase its economic value, but also may take it as one kind of lumber substitution raw material.

综合利用狼尾草原料，不仅可以提高其经济价值，而且可作为一种木材替代原料生产人造板，缓解木材资源紧张的矛盾。

Analyses for binder phase distribution and percolative nature as well as effect of progressive substitution HAC byα-alumina on phase composition and distribution in alumina-substituted MDF composites and wet properties suggest that the contribution of the cross-linked PVA located in the interphase region to transport of moisture is limited.

通过加热MDF复合材料至不同温度点分析了其胶结相的分布和渗透特性以及掺加α—A1〓O〓对其相组成、分布和湿性能的影响，结果表明，界面相中交联PVA对湿度传递的贡献是非常有限的，而本体聚合物区域的PVA提供了湿度传递的主要途径，未反应水泥颗粒作为水的接受体，对MDF复合材料的湿抗折性能与吸湿也产生了严重的有害影响。

The scale inhibition mechanism of PESA was proposed on the basis of characterization of transformation of calcium carbonate crystal by means of X-ray Diffraction and scanning electron microscopy. The effect of temperature on corrosion inhibition efficiency of PESA was investigated and the Bockris substitution model is proposed to study the thermodynamics of inhibiting process of PESA. The calculation results show the adsorption of PESA on carbon steel is a spontaneous exothermic process with the increase of entropy.

通过X射线衍射和扫描电镜分析手段研究了聚环氧琥珀酸加入前后碳酸钙垢晶型的变化，在此基础上探讨了聚环氧琥珀酸的阻垢机理；考察了温度对聚环氧琥珀酸缓蚀性能的影响，根据Bockris置换模型，计算出中性水质中聚环氧琥珀酸在碳钢表面吸附的热力学函数，计算结果表明：聚环氧琥珀酸在碳钢表面的吸附是一个放热、熵增、自动发生的过程。

METHOD Dofetilide was synthesized by steps of reaction (substitution ,reduction, methylsulfonylation and methylammoniation, etc) from p-nitrophenol and p-amino phenethyl alcohol.

以对硝基苯酚为起始原料，经取代、还原、甲磺酰化等反应制得 4甲磺酰苯胺(5 )；以对氨基苯乙醇为起始原料，经甲磺酰化、甲氨化等反应制得 4 甲磺酰苯胺(8)，再与5经取代反应制得多非利特。

Results G 2528A substitution transition in the K/T gene was found in the pmband of the family with piebaldism.

结果家系中先证者存在K／T基因第2528位G→A，使密码子AGT〉AAT，导致A850N.100名健康对照组不存在此突变。

In order to improve the electrochemical performance of LiCoO2, the majorities of researchers are working on the adjustment and substitution of the lay element, in order to increase the extract and deintercalated quantity and overcharge-resistant ability, the method pillaring in the interbed is brought forward for strengthening the structure stability.

目前为了改善LiCoO2的电化学性能，多数研究者进行的是层板元素的调控和替换，但实际效果仍不甚理想，我们采取层间柱撑金属离子的办法来提高材料的结构稳定性，以增加LiCoO2材料的锂离子可脱嵌量以及耐过充电压。

In order to improve the electrochemical performance of LiCoO2, the majorities of researchers are working on the adjustment and substitution of the lay element, in order to increase the extract and deintercalated quantity and overcharge-resistant ability, the method pillaring in the interbed is brought forward for strengthening the structure stability.

目前为了改善LiCoO2的电化学性能，多数研究者进(来源：8272A27BC论文网www.abclunwen.com)行的是层板元素的调控和替换，但实际效果仍不甚理想，我们采取层间柱撑金属离子的办法来提高材料的结构稳定性，以增加LiCoO2材料的锂离子可脱嵌量以及耐过充电压。

For the substitution and transversion of nucleotide in the same family, CHS sequences from Poaceae, Solanaceae and Papilionoideae evolved at nearly the same rate.

我们从水稻的基因组BAC文库中克隆了2个CHS基因，即B1-P7和B2-P5.B1-P7包含有完整的CHS基因，B2-P5则只克隆了外显子2和3'端的非编码区。

Our interpretation of the results from parsimony, distance and maximum likelihood based phylogenetic analyses suggest:(1) African colobines and Asian colobines have been independent evolutionary entities for a long time; the divergent time is estimated to occur 10 million years ago based on a molecular clock of 2% substitution per site per million years;(2) both Rhinopithecus and Trachypithecus could be regarded as separate genus;(3) Pygathrix and Rhinopithecus are sister groups while Presbytis and Trachypithecus are closely related;(4) both the Sichuan and Yunnan snub-nosed monkey represent valid species respectively;(5) within genus Trachypithecus, T. phayrei is closely related to T. cristatus and T. auratus, while T. francoisi is distinct from them; the white-headed leaf monkey, however, should be a subspecies of T. francoisi;(6) within genus Presbytis, P. thomasi should be separated as a valid species from P. melalophos, but the genetically divergent degree between P. comata and P. melalophos implies that P. comata may just be a subspecies of P. melalophos.

结果表明：（1）非洲疣猴与亚洲疣猴的分歧已非常明显，按分子钟推算的分歧时间约在1，000万年前；（2）Rhinopithecus和Trachypithecus均应成为独立的属；（3）白臀叶猴属与金丝猴属关系较近，Presbytis属和Trachypithecus属关系也较近；（4）我国的川、滇金丝猴应分别被视为独立的物种；（5）在Trachypithecus属中，菲氏叶猴与银叶猴(T.cristatus)和乌木叶猴亲缘关系较近，黑叶猴(T.francoisi)则与它们的关系较远，曾被怀疑为一个种的白头叶猴(T.f.leucocephalus)应只是黑叶猴的一个亚种；（6）在Presbytis属内，托氏叶猴应从僧帽叶猴(P.melalophos)中独立出来成为一个有效种，但我们的结果倾向于将灰发叶猴置为僧帽叶猴的一个亚种。

The results showed that PPC was a thermotropic liquid crystal and displayed the cholesteric banded texture. The reaction conditions had the distinct effects on the propoxy content and liquid crystal property of PPC, with the reaction temperature and content of propionyl chloride increased, the degree of substitution of propoxy increased at the beginning, then trended to steady. The transition temperature and range of liquid crystalline phase were changed with the DS of propoxy, as the DS of propoxy increased, the melt point decreased, and the liquid crystalline phase transition temperature range of PPC get wider.

结果表明，产物PPC具有明显的热致液晶性能，且呈现出胆甾型液晶的彩色条纹织构；反应条件对产物丙酰基含量和液晶性能有显著影响，随反应温度提高和丙酰氯用量增加，产物丙酰基的取代度先增大，后趋于稳定；其相转变温度和温域随丙酰基取代度改变而相应变化，随丙酰基的取代度增大，产物的熔点降低，液晶温度范围变宽。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。