短語詞組短語tangent t stiffness matrix 切線剛度矩陣symmetric tangent stiffness matrix 對稱的切線剛度element tangent stiffness matrix 單元切線剛度矩陣asymmetric tangent stiffness matrix 非對稱單元剛度矩陣increment tangent stiffness matrix method 增量切線剛度法torsion -warping tangent stiffness matrix 翹曲扭轉(zhuǎn)切線剛度矩陣 返回 tangent stiffness matrix