该文结合超导无磁杜瓦的研究，测定了某些低温玻璃钢等非全属材料的热膨胀系数，得出了玻璃钢等多层复合材料的线膨胀系数是各向异性的，不同组分的玻璃钢其膨胀系数各不相同，尼龙的线膨胀系数一般大于玻璃钢材料等结果，为工程应用提供了有价值的数据． Based on the research of superconductivity nonmagnetic Dewar, the thermal expansion coefficients of some non-holographic materials such as low-temperature FRP were measured. It was found that the linear expansion coefficients of FRP and other multi-layer composites were anisotropic. The expansion coefficient of FRP varies, the linear expansion coefficient of nylon is generally greater than the results of FRP materials, which provides valuable data for engineering applications.