linear fan无限长叶片风扇linearadj.直线的；长度的；线性的linear quotient method线性商法linear integral factor复合型积分因子linear source of sound线音源linear hi-refraction线性双折射linear-log quantizer线性对数量化器linearly ordered chain线性有序链linear resonant system线性共振系统linear passive network线性无源网络linear operator theory线性算子理论linear equation solver线性方程解算装置,线性方程求解装置