Stiffness Matrix of Element for Overall Stability Analysis of Plane Steel Frames with Semi-rigid Connections and Geometrical Imperfection是什么意思_Stiffness Matrix of Element for Overall Stability Analysis of Plane Steel Frames with Semi-rigid Connections and Geometrical Imperfection在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句