During the study we tried to lower the thermal expansion coefficient of cordierite by adding additives.

在本研究中，还试图通过添加外加剂来降低堇青石的热膨胀系数。

youdao

If the valve body material can be welded, but very different thermal expansion coefficient, or changes in operating temperature range of a larger thread junction closure weld must be honey.

如果阀体的材料是可以焊接的，但膨胀系数差异很大，或者工作温度的变化幅度范围较大，螺纹连接部必须进行蜜封焊。

youdao

Designed to complete the composite coefficient of thermal expansion of the calculation and prediction functions.

设计完成对复合材料的热膨胀系数的计算和预测功能。

youdao