The 2.7 dimensional element, as a typical FDE, is studied with a B matrix and a Hessian matrix derived to it.是什么意思_The 2.7 dimensional element, as a typical FDE, is studied with a B matrix and a Hessian matrix derived to it.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句