道路坡度 meaning in English

road grade

Algorithm of road slope estimation for automatic transmission control
自动变速器控制的道路坡度计算方法研究
The calculating formulas show that braking distance depends on initial braking speed , road dragging coefficient , mad slope grade , braking force increasing time ; and nothing to do with total mass of crane
计算公式表明：决定汽车起重机制动距离的主要因素是制动初速度、路面阻力系数、道路坡度和制动力增加时间；汽车起重机总质量与制动距离无直接关系。