In this paper,we calculate and analyze the strength of the hold frame of a 30000 DWT multipurpose ship by 3D F.是什么意思_In this paper,we calculate and analyze the strength of the hold frame of a 30000 DWT multipurpose ship by 3D F.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句