road maintenance meaning in Chinese

道路维护
道路养护
巷道维修

Application of loose circle theory in road maintenance
松动圈理论在采准巷道修护中的应用
Elementary discussion on country road maintenance and management
浅谈农村公路养护与管理
1 2 technical code of urban road maintenance
城市道路养护技术规范
April 2007 to 25 april 2007 to facilitate the road maintenance works
2007年4月25日止临时封闭，以便进行道路维修工程。
Discussion on running mechanism and administration system of rural road maintenance
农村公路养护管理体制和运行机制的探索

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