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。
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。
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。
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