To enhance thermal-wear resistance of the mandrel, it is required to use mandrel material which has dispersed carbide, linear expansion factor of the base metal close to that of the chide film, minimum elastic modulus and maximum thermal conductivity factor.

Utilizing method of function extremum, it is proved that there lies minimum coefficient heat transmission in sealed vertical air layer, that is to say there exists the minimum theoretical equivalent conductivity factor.

运用函数求极值的方法，证明了封闭垂直夹层中的传热系数存在极小值，即封闭垂直夹层在理论上存在最小的当量导热系数，并推导出了最佳空气夹层厚度的理论公式。

Research on relationship between particle size distribution of energy storage paraffin and the conductivity factor of phase change energy storage composite gypsum board

石蜡储能颗粒粒度分布与相变储能复合石膏板导热系数的关系研究

The calculation formula of equivalent conductivity factor in free convection on annular space is determined.

通过试验确定了双重保温管道环行空间自然对流换热在低Cr.Pr数下当量导热系数的计算公式。

The conventional foaming modes and test devices, including foam volume measurement, electrical conductivity measurement and pressure measurement were presented.

介绍了常用的起泡方式及检测手段，包括体积法、电导率法和压力法，讨论了各方法的优缺点；

Carbon aerogels are ideal supercapacitor electrode materials due to their sufficient specific surface area, high ratio of mesopore volume, good conductivity and stable physicochemical properties.

碳气凝胶作为一种新型纳米多孔材料，具有高比表面积，高中孔含量、高导电率、稳定的物理化学性能等优点，是制备超级电容器的理想材料。

Partial coherency analysis can lower the interference of the crosstalk. Meanwhile, some researchers proved that the imaginary part of coherency is not affected by volume conductivity.

偏相干系数分析能降低信号串扰，同时，有研究者证明相干系数的虚部不受容积传导的影响。

The surface conductivity and volume conductivity of nanocomposites are2~ 4 orders higher than that of pure epoxy resin respectively.

电学性能测试表明当金云母含量为1wt%时，复合材料体积电导率和表面电导率分别比纯树脂提高了2个数量级和4个数量级。

With the concentration increase of carbon nano-tube, the surface and volume conductivity decreased, and there were a conductive threshold.

随碳纳米管含量增加，聚酰亚胺薄膜的表面电阻率和体积电阻率都有明显降低，并存在一个阈值；

Ionic charge accumulation at microscopic interfaces and volume conductivity of filled composites

复合绝缘材料微观界面处离子电荷的积累与体积电导率

Relation between Glass Compositions and Volume Conductivity in Electrode Glass

电极敏感玻璃成分组成与体积电导率之间的关系

Research on a Digital Automatic Measure of Ice Thickness Using Conductivity of Water

利用水的导电特性对冰层厚度进行数字化自动检测的研究

A Study on Corrsion inhibiting Effect of Filming Amine Octadecylamine on Carbon Steel in Low Conductivity Water by AC Impedance Method

低电导率水中碳钢表面十八胺膜的交流阻抗法研究

Design and Laboratory Study of A Conductivity Water Holdup Meter

电导持水率计设计及试验研究

The principle of automatic conductivity water control and its application in China were introduced.

介绍了电导自动控水的原理及其在国内的应用情况。

YRD high temperature and high pressure program control rock thermal conductivity meter

两种典型升压程序的金刚石成核特性YRD型高温高压程控岩石热导仪

Development and applications of a solid state reaction conductivity meter

固相反应电导率仪的研制及应用

Improving design of SDD model digital conductivity meter

SDD型数字电导仪改进设计

Measurement of Plant Tissue respiratory rate with the Conductivity Meter

用电导仪测定植物组织呼吸速率

Introduce& analyze the interference from frequency converter to measurement instruments, particularize some instances to give field solutions.

介绍了变频机对现场测量仪表的干扰，对其进行简要分析，并列举实例提出解决措施。

This paper particularizes views on modern distance education reform from the connotation and characteristic of human cultivating model.

该文就人才培养模式的内涵与特征和现代远程教育的人才培养模式改革发表了见解。