相转变

The results show that the undissolved silicon particles in the melt become the cores of primary silicon precipitated in solidification and there is a close relationship between the shape of primary silicon and undissolved silicon particles. The growth of silicon follows not only the twin plane re-entrant edge mechanism, but also layer mechanism as well. Meanwhile, the shape of primary silicon also relies on kinetic surroundings, such as the transmitting of solute. At higher overheating temperature, the shape of primary silicon becomes the star-shape and tree-shape.

结果表明：重熔过程中熔体中未溶解的硅相粒子，在凝固过程中可成为初生硅生长核心，并且未熔颗粒与初生硅形状之间存在明显对应关系；初生硅的生长机制不是惟一的，既可以以孪晶凹角机制生长，还可以以层状机制生长，初生硅最终形状还要取决于溶质传输等动力学环境；随着熔体过热温度的升高，凝固组织中初生硅形状由多边形向星形及树枝状转变。

As social development and progression, the traditional teaching rationality on writing is also changing with it into the new type rationality of realizing man's variegation and personification, and grow into the unity of scietific spirit and humanistic spirit.

摘要随着社会的发展与进步，传统的写作教学理念也随之发生着重大的变化，向着实现人的多样化和个性化发展的新型理念转变，向着科学精神与人文精神相统一的方向发展。

According to the results of differential thermal analysis and thermogravimetry of a zein film, its glass transition temPerature is 171℃ and the decomposition temperature is 262℃.

醇溶玉米蛋白膜的差热分析结果表明其玻璃化转变温度为171℃，热分解温度为262℃。根据热重分析，温度为81℃时，失重率为2.3％，主要是乙醇及水分子的蒸发。262～355℃为产品急剧分解阶段，与差热分析结果相吻合。

The monoclinic celsian phase in the matrix was produced in situ,during hot pressing,from amphosous BAS.

在热压期间，基体中的单斜相钡长石由玻璃态钡长石原位转变生成。

The basic pattern of fairyland excursion combined with the life in seclusion had been created in the works of Sao tifu. The description of immortals in Hanfu was obviously different from the reflection on one's life experience by describing fairyland excursion in Chu Ci. What it pursued was mostly the pure fun in the fairland. The change of fairyland excursion from the heavenly spheres to the human worlds in Hanfu extended the space of artistic imagination of description of immortals. The fairy world in Hanfu was free and beautiful, which had become a symbol of spiritual realm of writers and the reflection of their interest in cloistral area.

汉赋将游仙与退隐相结合，开启了游仙隐逸化的基本表现模式；汉赋的游仙描写，已不完全是&楚辞式&的借游仙以抒怀，更多地表现出了真正意义上的&列仙之趣&；从楚辞到汉赋，游仙遇仙地点发生了由天界向人间的转变，从而进一步拓展了游仙描写的艺术想象空间；汉赋中的神仙世界自由美好，已成为文人精神境界的一种象征，寄托着赋作家遗世高蹈、超乎尘垢之外的人生志趣。

The results show that the effect of addition or no-addition of degasser on grain refinement of Al-5.0%Si alloy ingot is...

结果表明，除气剂的添加与否对Al-5%Si合金铸锭组织的细化没有影响，铸锭由粗大的柱状晶组织构成；采用合适的超声波处理时间，Al-5%Si合金铸锭的等轴晶获得率大幅度提高，可使整个铸锭组织变为细化的等轴晶组织；超声波振动时间过长将导致铸锭内气孔的增加；根据克劳修斯-克拉柏龙方程，某一强度的超声波引起的压力冲击波作用，导致液相转变为固相，引起了超声波的细晶作用。

By dilatometric test, Laboratory experiments were...

利用膨胀法在Thermecmastor-Z型热/力模拟试验机上进行实验室实验，测定了研究钢种在不同的中间保温工艺及一定变形工艺条件下的过冷奥氏体连续冷却转变曲线；对每个试样进行了打磨、抛光、腐蚀，在光学显微镜下观察其组织，研究了在不同中间保温工艺下组织的变化情况；利用所建立的CCT曲线研究了一定变形工艺条件及不同保温工艺对其相变行为及组织的影响，对其影响规律进行了分析。

The dilatometric curves of low-carbon micro-alloyed steel with Mo at different cooling rates were detected on Gleeble-3800 thermo-mechanical simulator.

在Gleeble-3800热模拟试验机上，测定了含Mo 低碳微合金钢在不同冷却速度下连续冷却时的膨胀曲线，利用热膨胀法并结合金相-硬度法，测定了该钢的连续冷却转变曲线；研究了冷却速度对该钢组织及硬度的影响。

By dilatometric change referencing microscopic test and hardness measurement, the critical point at Ac1, Ac3 and Ms of 27CrMo27S steel was determined in Gleeble-3800 thermal mechanical simulator, By measuring the different expanding curves of CCT in different cooling rate, CCT diagram was obtained.

利用膨胀法结合金相-硬度法，在Gleeble-3800热模拟机上测定了27CrMo27S钢的临界点Ac1、Ac3以及Ms；测定了该钢在不同冷却速度下连续冷却时的膨胀曲线，获得了连续冷却转变曲线；研究了冷却速度对该钢组织及硬度的影响。

The transformation of C-Si-Mn TRIP steel during continuous cooling in two static conditions was studied by dilatometry.

利用热膨胀法研究了C-Si-Mn系TRIP钢在两种静态条件下连续冷却转变时的相变规律，分析了冷却速度、奥氏体化工艺对组织的影响。

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。