car navigation短语¹³¹⁶²⁰⁺³ 基本例句 汽车导航 GPS is the substitute product for other Car navigation systems, such as Voice Car navigation, Electronic map. So we demonstrate our hypotheses by the substitution decision-making of GPS consumers. 从 GPS和其他导航产品在我国的发展趋势可以看出 GPS是其他导航产品如电话导航、电子地图的替代产品。 fabiao Gps Car Navigation Systems; 导航系统； globalimporter