成层

The formation of secondary phase in the non-equilibrium peritectic reaction was observed by precise transmission electron microscopy analysis. The microstructural evolution and phase selection regularities under different solidification velocities were constructed from the laser resolidification experiments. A new phenomenon involving two-phase coupled growth was firstly detected in the rapidly solidified Ti-Al peritectic alloy. The Ti-45Al-2Cr-2Nb alloy with fully lamellar structure ( a 2+ g ) was taken as an object to investigate the possible preparation of bulky metastable g phase materials based on both adjusting the competing nucleation relation and changing the growth kinetics condition.

首先通过过冷合金微观组织分析界定了各包晶合金熔体中各竞争相以初生相出现的过冷度区间；结合高温区的相图计算，从各相形核孕育时间角度揭示了过冷熔体中亚稳相与稳定相的竞争形核关系；通过精细微观组织分析，阐明了远离平衡时包晶反应中次生相的形成机理；在激光重凝快速凝固实验中建立了不同凝固速度下合金的组织与相形成规律，并对包晶合金中两相共生生长行为进行了深入分析；最后选取初生相为 a 的全层片 Ti-45Al-2Cr-2Nb 合金，从调整各相竞争形核关系和改变晶体生长动力学条件两个方面探索了块状亚稳 g 相材料的制备和控制。

One is that,by the shove of passive rift valley polycycle,quartz sandstone with high maturity of lithologic composition deposits on the background of sub-plain during sag period;together with the rock formation environment of paranormal saltless local water,the reservoir characterized b.

厘定该盆地这种突出商业价值的地质因素主要表现在以下两个方面：1被动裂谷的多旋回推移，在坳陷期的准平原背景下沉积了高岩石成分成熟度的石英砂岩，加之超淡地层水的成岩环境，最终形成盆地的高孔高渗储层；2&教科书&式的生储盖组合。

Single wall carbon nanotubes are either metallic or semiconducting, depending on how the graphite sheet is rolled up.

由石墨层卷曲而成的碳纳米管，因其不同的卷曲方式，既可以是金属，也可以是半导体。

It has been p roved that the fiber2op t ic confocal senso r system behave as a linear sh ift invariance system, perfo rm s like a lowpass filter and has h igh axial reso lut ion.

结果表明，系统相当于一复振幅线平移不变系统，具有低通特性和层析特性。关键词：共焦显微成像；相干传递函数；光纤传感器；自聚焦透镜；光学检测

The microstructures and second phases were examined by transmission electron microscopy.It is found that the specimen treated by 500 ℃/100 h has the best corrosion resistance among all the specimens.TEM analysis of the specimens tempered at 500 ℃ with different time shows that the second phase changes from the seriate strips to the banding...

用透射电镜研究了这些样品的显微组织和第二相，观测到随着保温时间延长，500℃下保温样品中的第二相由连续片层逐渐转变成带状分布的颗粒，保温时间达到100 h时，基体内析出βNb.560℃下保温样品与500℃下保温样品有相似的组织转变过程，只是时间大幅缩短，保温仅10 h时，基体已完全再结晶为等轴晶。

Thus conscience does make cowards of us all; And thus the native hue of resolution Is sicklied o'er with the pale cast of thought, And enterprises of great pith and moment With this regard their currents turn awry, And lose the name of action.

这样子，顾虑使我们都成了懦夫，也就这样子，决断决行的本色蒙上了惨白的一层思虑的病容；本可以轰轰烈烈的大作大为，由于这一点想不通，就出了别扭，失去了行动的名分。

Thus conscience does make cowards of us all, And thus the native hue of resolution Is sicklied o'er with the pale cast of thought, And enterprises of great pitch and moment With this regard their currents turn awry And lose the name of action.

这样子，顾虑使我们都成了懦夫，也就这样子，决断决行的本色蒙上了惨白的一层思虑的病容；本可以轰轰烈烈的大作大为，由于这一点想不通，就出了别扭，失去了行动的名份。

Thus conscience does make cowards of us all;And thus the native hue of resolutionIs sicklied o'er with the pale cast of thought,And enterprises of great pith and momentWith this regard their currents turn awry,And lose the name of action.

就这样，思想使我们都成了懦夫，果断力行的天然本色，便这么染上一层灰苍苍的忧虑的病色，而能令河山震荡的宏图大业，因这么考虑，洄流误入了歧途，便失去行动的名声。

Thus conscience does make cowards of us all; And thus the native hue of resolution Is sicklied o'er with the pale cast of thought, 85 And enterprises of great pith and moment With this regard their currents turn awry,And lose the name of action.

这样子，顾虑使我们都成了懦夫，也就这样子，决断决行的本色蒙上了惨白的一层思虑的病容；本可以轰轰烈烈的大作大为，由于这一点想不通，就出了别扭，失去了行动的名分。啊，别作声！美丽的莪菲丽亚！——女神，你做祷告别忘掉也替我忏悔罪恶。

The skyline of the Pearl River in the south, together with the skyline of Tianhe Sports Complex and the 88-storey CITIC Plaza in the north forms a wave-like skyline with rhythm, while the skyscraping twin towers on the north bank and the sightseeing TV tower on the south bank form a beautiful riverside scene of two banks and three towers.

珠江岸线天际轮廓线与北部天河体育中心、88层中信广场共同形成有节奏、有韵律的波浪形天际轮廓线。而北岸两幢超高双塔与南岸电视观光塔三足鼎立，两岸三塔成沿江美景。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失