查询词典 structure stability

Combining the performance evaluation (activity, selectivity and stability) and the characterization of the catalysts (XRD, TPD, FTIR and the pore structure measure), it can be concluded that :(1)The activity of modified β is higher than MCM-22, but the selectivity of ethylbenzene is lower about 3% than that of MCM-22;(2)The mounts of diethylbenzene and the other by-products are higher 1.7 times and 1.5 times than these of MCM-22 respectively;(3)The catalytic performance of zeolite mixture is nearly equal to modified β, but the selectivity of ethylbenzene is higher about 0.5% than that of modified β;(4)The catalytic activity of zeolite is mainly correlated with the number of acid sites, strength and distribution, and the distribution of products is determined by the binding energy of ethylbenzene and the pore structure, while the stability of catalyst is affected by the amount of poly-ring aromatic alkylate and the pore structure.

以性能评价和特性表征（XRD、TPD、FTIR和孔结构测定）相结合的方式，对上述三种催化剂性能比较的结果表明：（1）改性的活性明显高于MCM-22，但乙苯选择性却低于MCM-22绝对差约3%；（2）改性(上二乙苯和其他副产物的生成量分别约为MCM-22上对应值的1.7和1.5倍左右；（3）混合型催化剂的性能与改性相仿，但乙苯选择性提高0.5%左右；（4）对乙苯合成，沸石催化剂的活性主要取决于其B酸中心数、酸强度及酸分布，产物分布则取决于催化剂表面的乙苯脱附能垒值和孔道结构，而稠环芳烃的生成量和催化剂孔道结构是影响催化剂稳定性的主要因素。

Based on the example of shahe reservoir, the text makes an analysis on circulation, management and environment and social economy development condition of the surrounding ecosystem. Then, the author carries on inquisition, data analysis and summary and makes calculation and demonstration of the safe stability of the dam ,and discusses the risking obviation and reinforcing technique. Finally, based on the existing research of sustainable development, experts" opinions and Mathematical Statistics analysis, the author brought forward an indication system suitable for reservoirs" sustainable development This system is made up of 4 first class indexes, 13 second class indexes, 38 foundational indexes. The 4 first class indexes are the dam safety evaluating index, the management index of reservoirs, the water ecosystem system stability index, the reservoirs construction effect index. The 13 second class indexes are the construction quality evaluating index, the dam running and management evaluating index, the flood control standard recheck index, the structure safety evaluating index, the anti- earthquake evaluating index, seepage safety evaluation index sign, the metal structure safety evaluating index, the engineering facility index, the management index, the water ecosystem system stability index, engineering effect index, the economic development index, the society development index.

本文以沙河水库为例，对其运行、管理及周围生态环境和社会经济发展状况进行调查，并将调查资料进行分析、归纳、总结；然后对水库大坝的安全稳定情况作出了简要的计算和论证，并讨论了水库的主要除险加固技术；最后在总结现有可持续发展研究的基础上，征集专家的意见，进行数理统计分析，提出了由4个一级指标、13个二级指标、38个基层指标组成的一套适合该水库可持续发展的指标体系。4个一级指标分别为：水库大坝运行安全综合评价指标、水库管理指标、水资源生态系统稳定性指标、水库建设效应指标；13个二级指标分别为：工程质量评价指标、大坝运行管理评价指标、防洪标准复核指标、结构安全评价指标、抗震安全评价指标、渗流安全评价指标、金属结构安全评价指标、工程设施指标、管理指标、水资源生态系统稳定性指标、工程效应指标、经济发展指标、社会发展指标。

The experimental results proved that the realization of the scheme provided with superiority of simple mechanical structure, stability, high accuracy limit and uniform arranging wire.

实验结果表明：这种实现方法机械结构简单、运行可靠、限位精度高、排线均匀。

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。

It was difficult to control structure stability, safety, precision, antideformation preset and deformation in construction. Based on attention points, construction method was introduced, that was two cantilever towers being installed separately and extended ladder by ladder, then two cantilever parts were closured at high altitude.

指出了施工中需要考虑的问题，并采用两塔悬臂分离安装、逐步阶梯延伸、空中阶段合拢的安装方法，介绍了安装流程和安装工艺，并采用计算机全过程模拟来保证安装步骤、分区分跨、阶梯延伸、阶段合拢的可行性和安全性。

As the heart of TWT,the structure stability of grided electron gun directly affect pulse output performance of TWT,and the structural reliability under vibration stress are especial-ly important for today's manufacturers.

栅控电子枪作为行波管的&心脏&，其结构的稳定性直接影响着管的脉冲输出性能，特别是在振动应力下的结构可靠性更是当今生产单位关注的重点。

Based on the study of the cycling capacity degradation mechanism of the alloys, it is found that the structure stability of the alloys and their hydrides is good during cycling and has not effect on the cycling capacity degradation of the alloys.

对La〓MgNi〓等合金的循环容量衰退机制进行的研究结果表明，在充放电循环过程中，上述合金及其氢化物的结构稳定性良好，与合金循环容量衰退较快的行为无关。

In general, the subject on the optimal place and the amount of outriggers is more investigated than structure stability.

总的来说，对带伸臂的框架—筒体结构的研究主要集中在伸臂层最优数量和最优位置的问题上，对结构稳定性方面的研究涉及较少。

The effects of the mutation of some conserved residues on the structure, stability and redox potential of cytochrome 〓 have been discussed based on the structural comparison of the five mutants with wild type Tb5, respectively.

为阐明某些保守残基在细胞色素〓的结构和功能的相互关系以及电子传递过程中所起的作用，探讨制约或影响细胞色素〓的构效关系的主要因素，本论文对野生型Tb5及其一系列突变体进行了结构比较，并根据这些结果对细胞色素〓的三维结构与生物功能的相互关系进行了初步探讨。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。