THE FINITE DIFFERENCE METHOD ON TORSION PROBLEM OF PRISMATIC BARS WITH SECTOR CROSS-SECTIONS UNDER THE POLAR COORDINATE SYSTEM是什么意思_THE FINITE DIFFERENCE METHOD ON TORSION PROBLEM OF PRISMATIC BARS WITH SECTOR CROSS-SECTIONS UNDER THE POLAR COORDINATE SYSTEM在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句