highway bus公路局汽车highwayn.公路；(水陆空)直接航线或路线highway hydrology regionalization公路水文区划Highway between Sichuan and Tibet川藏公路highway crossing signal indicator道口信号指示器Highway Safety Research Institute公路安全研究所Highway Bureau of Shanxi Province省公路局highway reconnaissance and design公路勘测设计highway transportation management公路运输管理highway military transport routes公路军事运输线路highway electromechanical project公路机电工程highway traveling passenger volume公路旅游客流量