微急的

After analysing the flight, cooling and undercooled solidification of multistage atomized droplets, this paper adopts Newtonial cooling, highly undercooled heterogeneous nucleation and steadystate continuous growth model to calculate and simulate numerically the thermal history of droplets and effect of main atomization process parameters during multistage atomization. The results indicated that large undercooling occur mainly during later stage of multistage atomization while recalescence and rapid quenching occur mainly during forced cooling stage.

在分析多级雾化过程雾化微滴的飞行冷却和过冷凝固特点及规律的基础上，本文采用了牛顿冷却、大过冷非均匀形核及稳态连续生长模型，对纯铝多级雾化过程中微滴热历史以及主要雾化工艺参数对其的影响作用进行了数值分析和计算，结果表明：大过冷主要是在多级雾化后期形成的，再辉和急冷则主要发生在强制冷却阶段。

At that time the weather visibility was not high, is having the drizzle, in fact, enlightened plum Tela to say, the train already broke down "star of in the European" to that which collapsed the railroad bridge very is also far, suddenly transmits exceptionally "sharply checks 车声", because got on the brakes extremely anxiously, in left "star of the European" the very far place all to be possible to see on the spark and the track rain water which the track burst out the mist which got on the brakes scalding hot evaporates.

当时天气能见度不高，下着微雨，事实上，迪梅特拉说，在"欧洲之星"列车离那座已经垮塌的铁路桥还很远的时候，就忽然传来异常"尖利的刹车声"，由于刹车非常急，在离"欧洲之星"很远的地方都可以看见轨道迸发的火花和轨道上的雨水被刹车的灼热所蒸发出的雾气。

XRD, 29Si, 27AI MAS NMR, the adsorption of nitrogen at low temperature,129Xe NMR, XPS, IR-TPD, NH3-TPD, the high vacuum volumetric analysis and pulse flow microreaction were used to study the difference in structure and property between the US-SSY zeolites obtained by quick and slow cooling after treating SSY zeolite with steam at high temperature.

应用X射线粉末衍射、29Si、27Al魔角旋转核磁共振、低温氮吸附、129Xe核磁共振、X射线光电子能谱、程序升温脱附和脉冲微反等多种物理、化学手段，详细考察了经高温水蒸汽处理后的超稳Y分子筛在急冷和自冷过程中产生的结构和性能差异，结果表明，冷却速率是制备分子筛必要的控制因素

Analyzing the dynamic behavior of dislocations in the deformed metal at high temperature and high strain rate, a new theoretical model of dislocation dynamic behavior is put forward to describe the dynamic recrystallisation mechanism of the weld metal.

采用本文首次提出的测量摩擦界面温度的半自然热电偶测温法，并结合焊接过程中的急冷凝结组织分析、微区应变速率分析，以及摩擦扭矩测量等相关实验方法，测定了焊接过程中焊合区金属的组织及相应的热变形参数。

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。