绝热膨胀

A two-steps numerical method has been used to deal with this process. In every computation time-step, two phases are used: the first one is the adiabatic expansion and cracking phase; the second one is the phase of absorbing laser energy.

采用两步数值计算方法处理等离子体微滴的爆炸过程，即在每一个数值计算时间步长内，将爆炸过程分为两步，第一步处理微滴的绝热膨胀及裂解过程；第二步处理微滴对激光脉冲能量的吸收过程。

Four facts about this belt are analyzed in this work:(1) typical mantle metasomatism existing in the volcanic rocks and in their inclusions,(2) the distribution range of the Krich volcanic belt estimated according to the K2O/Na2O ratio of the volcanic rocks,(3) the "cold spring and taele phenomenon" caused by adiabatic expansion of the mantle gases, and (4) the current situation of seismic activities.

文中重点论述了以下4点内容：(1)火山岩及其包体中存在典型的地幔交代作用；(2)根据火山岩K2O/Na2O比值勾画出富钾火山岩带范围；(3)地幔气体的绝热膨胀导致"冷泉和冻土现象"；(4)地震活动的现状。

Large rare gas clusters of Ar〓, Kr〓, and Xe〓 and hydrogen clusters were produced in the process of supersonic adiabatic expansion. Rayleigh scattering method is used to diagnose the cluster size.

大尺寸惰性气体原子团簇和氢分子团簇喷流的制备和诊断利用高背压惰性气体和高背压低温氢气经锥形喷嘴向真空超声绝热膨胀来产生团簇，用Rayleigh散射方法诊断团簇尺寸及团簇喷流的时间特性。

Using pure air as working substance, the temperature drop between the inlet and the out gases is 63.6 K and the adiabatic expansion efficiency higher than 40%is achieved.

利用空气作介质，系统进出口湿降为63.6K，绝热膨胀效率可达42％。

The second part of the 19th century witnessed several major discoveries in the field of cryogenics, including adiabatic expansion systems for cooling gases, that led to the liquefaction of oxygen, air, and nitrogen, vacuum flask, which facilitated storage and handling of liquefied gases and the Joule-Thomson effect to produce continuously operating air liquefiers, triggered a resurgence of cryosurgery

19世纪后叶，低温学领域有几项重要发现，包括将纯氧、空气和氮气液化绝热膨胀系统，能储存和处理液化气的真空瓶，以及应用Joule-Thomson 效应产生持续液化气体流，这些均促进了冷冻疗法的发展

The results show that dynamical ductil-ity dominated final velocity of fragments. During tube expansion, the shear fracture appears preferentially a-long the adiabatic shear bands under positive stress, so the adiabatic shear band determines the size and shapeof fragments. Though the fragmentation behaviour of medium carbon Si - Mn bainific steel is close to that ofsteel 50SiMnVB, medium carbon Si - Mn bainitic steel is an ideal candidate material for the tubular bombs be-cause it is better in dynamical ductility, which can enable the tubes to gain high speeds before fragmentation.

结果表明：材料动态塑性是决定破片最终速度的主要因素；圆管膨胀时外表面形成以剪切为主的裂纹，并向内扩展，接近内表面的绝热剪切带伴随着圆管的膨胀而扩展，并未出现失稳现象，但在正应力的作用下成为优先的断裂通道、决定破片的尺寸和形态；中碳Si-Mn贝氏体钢与50SiMnVB钢的破碎性能相近，但贝氏体钢动态塑性很更好，破碎前的膨胀量较大、更有利于提高破片初速，是弹箭比较理想的候选材料。

The piston is now forced down, the burned gases expanding approximately adiabatically.

这时点燃的气体作近似的绝热膨胀而向下推动活塞。

The cooling methods that can adiabatically decrease the internal temperature of the ArD_2O,and Multipass cell techniques,they are both used as a major tools in the detection of investigated van der Waals molecular complexes.

同时，做为研究范德瓦尔斯复合物的主要方法，用以减小ArD_2O内部温度的绝热膨胀过程和多程吸收池技术也将有所介绍。

Bekenstein, Hawking, Gibbons and Perry have discussed the case of putting in an isolated box having rigid and adiathermal walls a black hole, which is in equilibrium with radiation under certain circumstances.

本文更广泛地探讨了该体系的热力学特性。从该体系的绝热膨胀过程出发，自然地定义了总熵和黑洞熵。

It is shown that the generation of the PA effect results from two kinds of contribution only. One is the contribution of so called"thermal piston"--the gas boundary layer adjoining the heated sample which expands cyclically and pushes the rest gas just like piston. The compressing process of it is comfirmed to be isochoric. And the other is that of"mechanical piston"--the thermally expansive sample itself, the compressing process of which is found to be polytropic with a index of (2-〓).

一即是被称为&热活塞&的与材料受热表面相邻的边界层气体周期性热膨胀产生的压缩，其是定容过程；另一是被称为&机械活塞&的材料本身热膨胀产生的压缩，其是多变过程，多变指数为2-〓，γ为绝热压缩因子。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。