短語詞組短語elastic support stiffness coefficient 彈性約束系數(shù)elastic support stiffness 彈性約束剛度elastic restrainted stiffness matrix 彈性約束剛度矩陣elastic contact stiffness 彈性接觸剛度elastic constraint stiffness 彈性約束剛度elastic restriction stiffness 彈性約束剛度elastic stiffness method 彈性剛度算法elastic stiffness martrix 彈性剛度矩陣 返回 elastic stiffness