The soil reactionmatrix is added to beam element stiffness matrix, and modified beam element stiffness matrix is formed.
将土反力矩阵与梁单元刚度矩阵迭加,形成修正的梁单元刚度矩阵;
2
It can become foamed products by being filled into common foam system, taking part in the synthesis reaction of foam matrix and foaming predominately by its own.