结构的

On the view of crystallography, the forming process of crystal structure of MgO during the burning of magnesite and the effect on its chemical activity were discussed.

讨论了菱镁矿烟烧过程中MgO晶体结构的形成过程以及对MgO活性的影响，当菱镁矿的煅烧温度低于800℃时，由菱镁矿的晶体结构逐渐转变形成的MgO晶体结构中存在较多的缺陷，赋予MgO高的化学活性，这些缺陷位置是其与MgCl_2水溶液进行化学反应形成5.1.8相的物化活性点。

This study attempts to use the statistical techniques of multilevel confirmatory factor analysis to model the measurement of learning school. The analyses follow the four initial steps proposed by Muthèn: conventional CFA of total structure, estimation of between-group variation, estimation of within-group structure, and estimation of between-group structure.

本研究采用多层次验证性因素分析的统计技术来模式化学习型学校的量表，分析依循Muthèn(1994)所提出的四个先行检定步骤：对整体结构做传统的验证性因素分析、组问变异的估计、组内结构的估计，以及组间结构的估计。

In this paper,a combined study was curried out for interpreting structure,distribution and tension of fault, wave field effect, heat state and nonelastic medium by explosion seismic Sounding, ZD and 3D long period surface waves of earthquake,magnetotelluric deep sounding,heat flow survey,the mechanism of tectonic movement and deep internal processes in Qinghai-Xizang Plateau.

地壳到地幔速度结构的纵向结构变化，横向分区和走时残差随深度的显著变化，板块边界的地球物理异常场效应，垂直向差异显著的地壳结构与深大断裂体系，低速层的变异、分布、尖灭与缺失，以及近代火山活动地区典型的地热活动特征等，不仅说明构造异常，而且也说明了青藏高原地壳与上地幔在纵向与横向上都不均匀。

Although a great deal work have been done to theoretical research of beams with two cantilevers structure, we paid attention to test systems used in beams with two cantilevers mechanics test less. And school, incorporated teaching and researching, needed this small or medium octavo test system to develop teaching and researching. So joining in this development item of test system established by school, the thesis aimed to develop a set of simple, economical and applicable test system of reinforced concrete beams with two cantilevers to serve for teaching and researching, and make it a powerful supplement in structural experiment field.

我们尽管已经对双悬臂结构的理论研究做了大量的工作，但是对双悬臂结构进行力学试验的试验体系相对较少，而作为教学与研究为一体的学校迫切需要这样的中小型试验测试体系开展教学与科研，故本课题结合学校已经立项的试验系统开发项目力图研制开发一套简单、经济、适用的钢筋混凝土双悬臂梁试验系统为教学与科研服务，同时作为对双悬臂梁结构试验领域的补充。

The security and perdurability of bridge are directly related to people's life and wealth, therefore a predicting and warning and timely maintaining system based on identifying the modal parameters and inspecting damages of the bridge structures is developed which can help to eliminate hidden troubles and avoid the occurrences of catastrophic accidents.

模态试验是桥梁结构竣工试验、健康监测等方面的重要组成部分，而模态试验分析的最终目标是识别出系统的模态参数，为桥梁结构的振动特性分析、健康监测等提供依据，因此，桥梁结构的模态参数识别是模态分析的重要内容。

Be opposite through analysing academia above all the different definition of connotation of industrial structure rationalize, gave out a kind limit a method newly, put forward reasonable industrial construction to should have relativity, dynamic sex and permissibility the method that then of 3 features; uses obscure part, constructed the place of total supply and demand of reasonable industrial construction should subject concessional interval; discussed the interactive concern between both finally.

首先通过分析学术界对产业结构合理化内涵的不同定义，给出了一种新的界定方法，提出合理的产业结构应该具有相对性、动态性和容许性三个特征；继而使用模糊集的方法，构造了合理的产业结构的总供需所应隶属的容许区间；最后讨论了二者之间的互动关系。

This paper reports the investigation on the petrology of spinel harzburgite and olivine pyroxenite in the Darbut ophiolitic mélange, as well as the worm-like intergrowth texture composed of Cr-spinel and orthopyroxene wide-spreading in harzburgite. Our study shows that the observed intergrowth texture is not a graphic texture or a symplectite as assumed by previous research, instead, it is a product of the evolution of the Cr-rich magma formed after the melting of the primitive mantle.

通过研究西准噶尔达拉布特蛇绿混杂岩中方辉橄榄岩和橄榄辉石岩的岩石学特征，分析方辉橄榄岩广泛发育的铬尖晶石和斜方辉石构成的蠕虫状共生连晶结构的成因，得出结论认为：这种共生连晶结构不是前人所认为的文象结构或者石榴石的后成合晶，而是原始地幔岩熔融形成富铬岩浆的演化产物。

The conventional numerical simulation of a reverberant field as a launch acoustic environment was introduced. Following the reciprocity theorem used in the coupled FE-BE model, the structural response due to reverberant acoustic excitation was substituted by the sound pressure caused by force excitation on the structure, then the output response power spectrum density of the coupled model subjected to reverberant environment was evaluated based on the stochastic analysis principle.

首先介绍了传统的构建混响声场的数值模拟方法；其后利用声振耦合中的互易定理，将混响声场的激励问题转化为结构模型上力激励引起的场点声压响应问题，并采用随机分析原理，用谱分析方法推导了结构在混响声场激励下的响应计算公式；最后建立了航天器典型结构的声振耦合模型，并分别用传统方法和利用互易定理的方法进行了数值模拟。

Western of most labour force cannot reeducate sex is to restrict western the main factor; that the industry chooses western the choice basis of the industry of adaptability; dominant that the target that structure of the industry in development optimizes should be industrial structure and consumptive structure is the consumptive connection between the industry and man-made the diversity that growth pole fosters.

西部多数劳动力的不可再教育性是制约西部产业选择的重要因素；西部开发中产业结构优化的目标应是产业结构和消费结构的适应性；主导产业的选择依据是产业间的消费联系和人造增长极培育的多样性。

The results show that the most stable P5 is the doublet state of b isomer evolved from regular tetrahedron P4 while the most stable P(superscript + subscript 5) and P(superscript - subscript 5) are the singlet state of e, j isomers evolved from square P4, respectively.

结果表明，最稳定的P5为由正四面体的P4演变来的b结构的二重态，P(上标+下标 5)和P(上标-下标 5)则为由正方形P4演变来的e结构和j结构的单重态。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。