roadbase道路基层
roadn.路;道路;途径;方法
road passenger transport enterprise公路客运企业
road obstructing return of function回归路阻函数
Road surface power spectrum density路面功率谱密度
Road traffic crash cushion cylinder道路交通防撞墩
roadbed-bridge transition section路桥过渡段
Road Transport Association of China中国道路运输协会
road bridge construction enterprise路桥施工企业
Road compulsive speed-controlling公路强制控速