查询词典 phase change

Using the color changing information of phase change paint, this technique mainly applies an image capturing and processing system which consists of a CCD video camera and a computer to measure the characteristic parameter and the heat transfer rate of model surface in hypersonic flow.

该技术主要是运用CCD摄像机与计算机组成的图像采集与处理系统，利用涂料发生相变的颜色变化信息，测定高超声速流场中模型表面气动加热的特性参数和热流分布情况。

The phase change layer may be formed of a quaternary compound including an amount of indium ranging from about 15 at.

该相变层由包括铟的数量在大约15at。

Based on the governing differential equations of the transient problem of temperature fields with phase change, the two-dimensional finite element formula of computing temperature fields around a buried pipeline in permafrost regions are achieved by using Galerkin's method.

根据相变瞬态温度场的控制微分方程，应用Galerkin法推导出计算温度场的二维有限元公式，对中国东北多年冻土区运行30年的加热输油管道土壤温度场进行了计算分析和比较。

According to phase change theory of thermodynamics, the condensation conditions of reacting solid products are concluded and the productivity and critical size of condensation nucleus are given.

根据热力学相变理论，总结了反应固相生成物发生凝结的条件、凝结核的生成速率和临界尺寸。

The loss of weight of powder during combustion process, phase change, conglobation, grain size, crystalline grain distortion situation, maximum magnetic energy and coercive force were get detaily.

通过差重分析、红外光谱、扫描电子显微镜、能谱、化学相态分析、X射线衍射、振动样品磁强计等检测手段对所得的样品进行燃烧过程重量损失、相态变化、样品的分散性和均匀性、团聚情况、晶粒尺寸计算、晶格畸变情况、样品的最大磁能积、矫顽力等相关的性能进行检测。

Combine the cooling characteristic curve of quench media and the dynamics curve of continuum cooling phase change to select the quench media of materials is very useful, and it can obtain best microstructures and controlled crack polarity or distortion.

文章摘要：提出将淬火介质冷却特性曲线与材料的奥氏体连续冷却转变动力学曲线相结合，来选择材料的淬火介质，获得合适的显微组织并控制材料淬火过程中的变形、开裂倾向。

In those tests, the most difficult problem is to discriminate the types of the crystalline phase change.

因此在材料的研制中必然要对材料的物相进行经常的、大量的检测工作。

In order to enhance heat transfer efficiency of reboiler which is widely used in petroleum and chemical system, phase change heat transfer and friction characteristics in several heat transfer enhancement tubes are studied, With a view to approach practical circumstances, cumene is chosen as organic working medium.

为了提高石化系统再沸器的传热效率，本文研究了几种强化沸腾与冷凝管的传热与阻力特性。为接近实际条件，选用异丙苯为工质。

A two-dimensional phase change heat transfer model was established in the polar coordinates and cylindrical coordinates by enthalpy approach.

本论文针对相变蓄热的问题，通过引用焓法建立了平面极坐标与二维柱坐标下数值求解相变传热问题的数学模型。

The law of phase change of pipeline steel X80 during continual cooling was studied by adopting dilatometer.

中文摘要：采用膨胀仪研究管线钢X80连续冷却过程中的相变规律。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐