变变

In the investigation of Cu-Zn-Al SMA, the influence of quenching speed, shape memory thermal treatment on SME, microstructure and morphologies was discussed. The changes in morphology and interfaces were in situ metallographic observed during thermal cyclings in order to control the degradation of two way shape memory effect . The stabilization of stress induced martensite variants method and the accordingly changes in microstructure were studied in detail. The mechanism was also compared between SSIM and TWME training method. From the above in situ observation results, the interface structure and especially the twin related A: B type variant pair were examined by HREM to clarify the role of movability of interfaces and the changes in variants orientation in inducing the degradation of the TWME. During developing the Ni-Ti-Hf SMA melt spinning ribbon, it was found the morphology and structure embodied the SME and was directly effected by chemical composition and technique factors, such as the different content of Hf, the speed of copper roller rotation and etc. Therefore, the morphology and structure were extensively examined.

在对Cu-Zn-Al形状记忆合金研究中，研究了提高记忆效应的热处理淬火速度、记忆热处理方式对Cu-Zn-Al形状记忆合金组织结构的影响；为了弄清双程记忆效应衰减的原因，原位动态观察了热循环过程中，合金组织形貌及界面的变化；因形状记忆合金必须经记忆训练才能具有双程记忆效应，系统地研究了应力诱发马氏体稳定化训练方法和这种方法引起的双程记忆合金组织结构的变化，比较了它与双程记忆效应训练方法诱发TWME机制的异同；因在原位动态观察中发现界面可动性及两侧变体取向的变化，伴随着记忆效应的衰减，用HREM详细研究了变体的界面结构，特别是A：B型变体界面结构及变体内部结构。

Here optimum'is reflected by theindex to be the smallestBut the controls through such sifting need not be real optimumones,because maybe there are other kind of variation or high order variation throughwhich the index have negative variation and the conditions are satisfied.

这里最优的意思是通过指标泛函最小来表示的但是这样筛选过的控制未必是最优的，因为还可能可以用其他方式的变分或高阶变分等来使约束条件不变而指标泛函的变分为正。

Many enterprises in advertising language issues often feel confused, in the 'change' and 'unchanged' on the horns of a dilemma,'no change' is very easy for the aging brand;'change' can very easily have unknown risks.

很多企业在广告语问题上常感困惑，在'变'与'不变'的问题上左右为难，'不变'很容易使品牌老化；'变'则很容易产生未知风险。

According to the definition of the OMOPM family, we only need appropriate parameters and proper sets of orthogonal basis function.

根据此一家族的定义内容，只需要适当的指定调变参数以及选择适当的正交基底函数集合，便可以囊括了新的调变形式以及传统的调变形式，正交分频多工调变技术也是其中的一个特例。

With the increase of lead concentration, the inhibition index of the radical growth increased remarkably, the radical became podgy, deformed, even browning and necrotic.

进一步的光学显微镜分析结果表明，根尖生长锥随着铅胁迫浓度的增加而变短、变粗、畸形，根尖细胞变短、变小。

How at the bigining of the fire alarm send out the information to the police,and in the building that did not establish a fire automatic alarm system ,what kind of fire prober is chosen.

变配电室是维系在建筑物内日常生产、生活正常运行的核心部位，如何在变配电室火警初期，及时准确地发出报警，确保变配电室安全，以及在未设置火灾自动报警系统的建筑物中，针对变配电室设置独立的火灾报警系统，选用什么形式的探测器，本文就此做一粗略的探

Through analyzing the rheological properties of PVC high polymer,the rheological characteristics of PVC in an extruder and that in a rheometer were discussed,and the correlation of these two kinds of rheological characteristics were described as well as their application.

通过分析PVC高聚物的流变性能，讨论了PVC物料在挤出机中和转矩流变仪中的流变特征，阐述了两种流变特征的相互关系及应用。

Abstract］ Objective:To purify and characterize the major antigenic components of sand swimming crab,and provide theoretical evidences for the research of standardization of allergenic vaccine.Methods:The crude extract of Linnaeus was prepared using classical method, and electrophoresis of SDSPAGE was used to separate the proteins of each group.

目的：对梭子蟹变应原进行分离，鉴定其主要及次要变应原，采用蛋白纯化技术获取梭子蟹天然的主要变应原并进行鉴定，为标准化变应原疫苗的研制提供理论依据。

Most obviously, they have become smaller, sleeker, smarter and more versatile.

最明显的是，它们变小了，变亮了，变聪明了，而且功能变多了。

A model of continuous beam with spring supports is put forward to analyse time-dependent structural systems.

针对施工期现浇钢筋混凝土结构的时变性，定义楼板刚度与模板支撑的刚度比为施工时变结构体系的弹性特征值，建立了以施工时变结构体系弹性特征值为参数的现浇钢筋混凝土结构施工受力性能分析的弹性支撑连续梁模型，基于该模型，分析了施工期现浇钢筋混凝土结构的受力特性，发现在特定施工方案下，当施工时变结构体系的弹性特征值较小时，最大施工荷载出现的楼层位置会提前，而拆模时间也会改变最大施工荷载出现楼层的位置；施工时变结构体系的弹性特征值和拆模时间都影响楼层承担的最大施工荷载比率(荷载比率定义为结构承担荷载与楼板自重的比值)；施工期楼层承担的最大施工荷载随楼层位置呈现波动特性，随楼层位置增高波幅逐渐减小，最后趋于稳定。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。