查询词典 thermal conductivity

Soil thermal conductivity is an essential parameter for studying the coupled transport of heat, water, and solute at land surface.

土壤热导率是研究陆地表层水热盐耦合运动的基本物理参数。

Clad stainless steel plate is a kind of high energy saving material, which consists of carbon steel base covered with 2~20mm thick stainless steel plate on one or both sides. It bring the merits of both metallic materials, not only the functions of anticorrosion, abrasion resistance, magnetism proof and decoration of the stainless steel, but also the characteristics of weldability, mouldability, extensionality and thermal conductivity of the carbon steel.

不锈钢复合板是一种以碳钢为基体、单面或双面整体包覆2~20mm不锈钢的高效节能复合材料，它能够充分发挥两种金属材料的特性优势，既具有不锈钢的耐腐蚀性、耐磨性、抗磁性和装饰性，又具有碳钢良好的可焊性、成型性、拉延性和导热性。

The figure of merit, ZT is calculated in terms of electrical resisitivity, Seebeck coefficient and thermal conductivity.

对高温高压下部分样品热导率的测试表明：我们所合成的样品都具有较低的热导率，已经达到了高性能热电材料对热导率的要求。

Physical parameter substitutes for phase-changing latent heat, then critical temperature of thermal conductivity welding is determined, so finite difference equation can be solved by MATLAB software.

改变热物性参数替代相变潜热确定了热传导焊接的临界温度值，利用自编的MATLAB程序对有限差分方程进行求解，数值模拟了焊件的温度场。

In order to recover dimethyl formamide, a gas chromatographic method with thermal conductivity detector for its determination has been established.

建立了用于回收二甲基甲酰胺的气相色谱测定方法。

According to actual condition, a model of wall thickness of rotary kiln is established. The constant coefficients in the model, including thermal conductivity, heat transfer coefficient, Fourier coefficient and contact resistance, are closely calculated. A formula of contact resistance is draw from a great deal of data of surface and inner temperature of rotary kiln. The wall thickness of rotary kiln is simulated by MATLAB. The simulation result is transmitted from MATLAB to DELPHI through a group of interface functions compiled by VC++. The basic graphs-circle and line are analyzed by the means of the technique of Visualization in Scientific Computing and the Bresenham arithmetic, and are realized the visualization of the wall thickness. The contents of communication between master computer and slaver computer are designed and the error control technique, the idea of multi-thread and the embedded assembly language are applied to realize the temperature data transmission and graph transmission, which largely improved the speed of transmission and the reliability and stability of system.

建立了符合现场实际的回转窑壁厚数学模型；结合现场采用红外测温仪测量所得的温度数据和回转窑的实际结构数据，确定出适合该模型的定常系数(包括导热系数、换热系数、傅立叶系数、接触热阻等)，并得出与回转窑工况的相近的接触热阻公式ln=T~(0.5154)-36.7868；利用MATLAB软件仿真出回转窑壁厚，并将运算结果通过在VC++的编译环境下编译出MATLAB和DELPHI的接口函数传输到该监测系统中，实现了温度数据的转换和交换；运用科学计算可视化技术和Bresenham扫描转换算法对基本图形——圆和直线进行分析，从而实现了仿真后的壁厚数据可视化；在研究异步串行通信方式的基础上，设计了该系统上下位机功能和通信内容，并运用差错控制技术、多线程思想以及嵌入式汇编语言实现了温度数据和图形数据在上下位机之间的远程传输，提高了数据传输的速率和系统的可靠性、稳定性。

The measurement of thermal conductivity for low temperature frozen soil is important in researching the heat physical characteristics and the frost heaving of soil.

冻土导热系数的测定对于研究冻土热物理性质、土体冻胀特性有着重要作用。

Based on the element-free Galerkin method, the basic equations for steady thermal conductivity problem are deduced; and then the shaping of the coefficient matrices and load vectors in the discretization form of them are presented.

基于无单元伽辽金法基本理论，推导了稳态热传导问题的基本积分方程，并介绍了其离散形式中，包含刚度矩阵在内的各个系数矩阵和荷载向量的主要形成过程。

Increasing with the increment of grain size at nucleation side, the thermal conductivity is increased.

形核面晶粒尺寸越大，晶粒间的晶界就减少，有利于提高金刚石自支撑膜的热导率。

Analysis showed that the type of binders and temperatures of graphitization played an important role in the thermal conductivity of bulk graphite.

结果表明，粘结剂的种类和石墨化温度与石墨材料的导热性能有着密切的联系。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。