For foundry sand from a famous domestic area, the curve of thermal expansivity with the temperature was described.

本文最后给出了利用本装置测得的国内某著名铸造用原砂的热膨胀-温度曲线。

The practical value of knowledge resources possesses popularity, duality of exhaustiveness and non exhaustiveness, and expansivity.

知识资源的使用价值具有广普性、非耗竭与耗竭二重性及扩张性 ；

For each test series the samples were maintained according to its own maintaining method and the loss rate of quantity or length expansivity was measured in defined period.

各个试验系列按照各自养护方法进行养护，并在规定龄期测定其质量损失率或长度膨胀率指标。

Such machine may feed different high-expansivity puffing matters in three colors simultaneously, with an accurate grouted quantity, uniform speed, and clear boundaries of colors.

该三色注浆机可同时注三色高膨胀率膨化料，且 注浆量准、速度一致，竖三色分界线清晰。

In this paper, dealt with are the different effects of the superfine slag on the shrinkage and expansivity of the high strength concrete (HSC) and the shrinkage-compensating concrete.

研究了超细矿渣对高强混凝土和补偿收缩混凝土的收缩、膨胀性能的不同影响。

A support material with low expansivity and high conductivity, called DG alloy, was prepared by powder metallurgy. The effects of sintering process on its properties and microstructure were studied.

采用粉末冶金技术制备了一种低膨胀高导热支撑材料(简称DG合金)，研究了烧结工艺对合金组织和性能的影响。

On the assumption that the product of volume thermal expansivity and bulk modulus based on the thermodynamic approximation theory, a new equation is presented for volume thermal expansion coefficient.

根据热力学近似理论，在对体积热膨胀系数和体积弹性模量的乘积进行假设的基础上推导了一个体积热膨胀系数与体积和温度间的关系式。

In this article, the method of producing the glass from the goldmine-tails has been studied, and the bending strength, chemical stability, density, thermal expansivity of the glass have been measured.

研究了利用金矿尾砂熔制玻璃的方法，测定了基础玻璃的抗折强度、化稳性、密度、热膨胀性等理化性能。