roadmann.修路工人
roadn.路;道路;途径;方法
road performance of fuel燃料的行车性能
road net work extraction道路网络提取
road slowdown facilities减速带
road logistics transport道路物流运输
road-cum-rail bridge公铁两用桥梁
road traffic in Shangqiu丘公路交通
roadbed bearing capacity地基承载力
road passenger transport陆路客运。
road maintenance machine维修路的机子
road-finishing machine路面整修机