angle of internal friction

• 内摩擦角,内磨擦角

angle of internal friction的用法和样例：

例句

1. Cohesion and angle of internal friction decrease along with the broadening of water content and the better linear relation exists in the moistening process.
   在增湿过程中的凝聚力内摩擦角都随着含水率的增加而减小，并具有较好的线性关系。