相转变

LA experiences two first-order like transitions, corresponding with the demolishment of the a core and the β core respectively.

LA在转变过程中经历了两次一级相变，分别对应着α核被破坏和β核被破坏。

CCT curve s of 450 MPa and 550MPa high strength weathering steel were studied by gleeble1500 hot simulator and DT-1000 dilatometer.

采用Gleeble1 5 0 0热模拟试验机及DT 1 0 0 0膨胀仪研究了 4 5 0MPa和 5 5 0MPa级高强耐候钢的连续冷却转变曲线，分析了不同变形及冷却工艺条件下高强度耐候钢的金相组织类型。

CCT curves of 450 MPa and 550MPa high strength weathering steel were studied by gleeble1500 hot simulator and DT-1000 dilatometer.

采用Gleeble1 5 0 0热模拟试验机及DT 1 0 0 0膨胀仪研究了 4 5 0MPa和 5 5 0MPa级高强耐候钢的连续冷却转变曲线，分析了不同变形及冷却工艺条件下高强度耐候钢的金相组织类型。

In the single crystal of C60 with a FCC structure,positron mainly appears outside the C60 molecule.The main annihilation space is the interspace between molecules.The calculated positron bulk lifetime in C60 is 352ps, which agrees with experiment value of 356ps in literature.In carbon nanotube bundles with different dimeters,as the diameter of carbon nanotubes increases,the main space where positron appears changes from the interspace of carbon tubes to the space inside carbon tubes,the radio between positron annihilation with valence eletrons and core eletrons becomes larger,the positron bulk lifetime in carbon nanotube increase rapidly first and come to be a constant at the end.The calculated positron lifetime of carbon nanotube with a dimeter of 0.8～1.6ns is 332～470ps,which agrees with the experiment value of 394ps.Positron annihilation has been studied in widly used compound semiconductors.

计算结果表明：在片层结构的石墨晶体中，正电子主要在石墨层间的空隙中湮没，计算出的石墨中的正电子寿命为208 pS，与文献中的实验结果215 ps符合很好；在金刚石单晶中，正电子主要在碳原子之间的空隙中存在并发生湮没，计算出的金刚石中的正电子寿命为115 ps，文献中的实验结果110 ps左右符合；在面心立方结构的C60晶体中，正电子主要在C60分子球壳内外侧及分子之间存在，C60球形分子中心正电子分布很少，正电子的湮没区域集中在C60分子之间的空隙区域，计算出的C60中的正电子寿命为352 ps与文献中的实验结果356ps相符合；对于不同管径碳米管束中的正电子分布，随着碳纳米管直径的增加，碳纳米管束中的正电子由主要在碳纳米管管间的区域出现转变为主要在碳纳米管管内中心的区域出现：碳纳米管束中的正电子与碳原子的价电子的湮没概率变得越来越大，与核心电子的湮没概率变得越来越小；碳纳米管束中正电子的湮没寿命先迅速增大，而后趋于一定值。

Nd and Y showed more evident effects than Gd and La due to lower temperature of eutectic reaction with aluminum. In order to investigate mechanism of the formation of the intercellular dispersoid which is being in debate and possibility of suppressing the dispersoid, a nucleation kinetic model which including unsteady nucleation and effect of alloy element was established.

Al-Fe-Mo-Si-Zr-Ti合金粉末具有四种凝固组织，初生Al〓〓，α-Al与Al〓共晶，胞晶及显微胞晶，合金元素Mo的加入，显著提高合金粉末凝固前的过冷度，使10~40μm粉末的凝固机制发生了变化，由导热控制型转变成溶质扩散控制型，从而基本上消除了该尺寸范围内粉末凝固组织中共晶成分和初生相，但对大于40μm的粉末，因共晶区富Zr核心的优先形成而使Mo的作用效果不明显。

Network economy could reduce costs of exchange and achieve economies of scope and economies of integration. The advancements of network economy urge it to be the mainstream over obstacles. It shifts situations between supplier and demander, changes the characters of demanding and factors of purchasing. Those engender new type of demand. Estate agencies, which integrate on-line and off-line services, will achieve dominancy in the market. In general, estate agencies have to shift from the necessary intermedia to assistant roles. Network economy supplies a gap of information deficiency in estate market and levels down the amplitude of estate economy cycle. Informatization of industry management enhances market efficiency, at the same time decreases systemic risks.

网络经济的进步性能够使其最终重重突破障碍而实现主流化；网络经济从本质上改变了房地产供求双方的主从格局，使需求特征及购买决策因素发生变化，也形成了新型房地产产品需求；网上服务与网下服务相结合的中介主体将主导中介市场，但总体而言房地产中介将由必要的市场环节转变为重要的辅助环节；网络经济改善了房地产市场信息信息缺陷局面，平缓了房地产经济的周期性波动，行业管理信息化提高了市场效率，也降低了系统风险。

At the Pearl in Denerim, there is a duelist named Isabela who is acquainted with Zevran. If you are in a romance with him and bring him to the Pearl, he will join you in a threesome with her. If you have Leliana in your party, and she has changed to a more hardened personality, and she is in a romance with you, she will also join you in a foursome.

在Pearl in Denerim，有一个叫Isabela 的决斗者，Zevran 和她相熟；如果你正好和Zevran处于恋爱关系并且把他带到pearl，他会加入你们进行3P；并且如果Leliana在你的队伍中，并且她已经转变成强硬性格，并且她也与你处于恋爱关系，她会加入你们进行4P。

With the elastic strain energy increased, the arrangement orientation increased, from spherical-shaped precipitates to elliptical plate.

随共格畸变能的增大，沉淀相分布的取向性越来越明显，由原来离散分布的等轴粒子状向椭片状转变。

The static high-pressure experiments show that enstatite transforms to perovskiteSiO〓 at high pressure, so perovskiteSiO〓 is thought to be one of the main compositions of the lower mantle, but if it could keep the perovskite stucture in the whole lower mantle condition, there are still different opinions.

静高压实验研究表明，高压下顽火辉石将转变为钙钛矿型SiO〓，于是人们将钙钛矿型SiO〓列为下地幔的一种主要候选组分，但对于钙钛矿型SiO〓在下地幔压力(24-136GPa)和温度条件(约2000-5000K)是否保持单一相态的问题，目前尚存在不同意见。

The main conclusions are:(1) The dymatic process of eutectoid transformation is observed continuously though high-temperature microscope for the first time.

由实验结果和分析可得出以下结论：(1)首次利用高温金相显微镜连续地观察共析转变的动态过程。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。