adj.直线的，线形的；长度的；一次的，线性的；通过单独的若干阶段来发展 双语释义：adj.(形容词)线的;直线的 of or in lines[A]长度的 of length英英释义： linear[ 'liniə ]adj.designating or involving an equation whose terms are of the first degree同义词：additiveof or in or along or relating to a line; involving a sing