roadbase道路基层
roadn.路;道路;途径;方法
road guard and regulation service道路警备调整勤务
road transport of dangerous goods道路危险品运输
road speed-controlling facility道路限速装置
road reconnaissance survey design道路勘测设计
road milling and grooving machine路面刻槽机
road accident responsibility book交通事故责任书
ROAD PLANING AND TRENCHING SERIES面挖掘系
road-surface-paving technology路面铺装技术
road-bridge transitional section路桥过渡段
road testing of petroleum products石油产品的行车试验