This paper analyzes the force state of vehicles in the combination road sections, and partly study concretely driving force situation when the vehicles is running on the plane and vertical road.
本论文具体分析了汽车在平纵组合路段上的行驶速度变化，汽车在平纵组合路段上的受力状态，分别研究了汽车在平面、纵断面上的行车受力情况。
With the promotion of road grading, the control of vertical deflection in bridge design is becoming more important.
随着道路等级的提高，桥梁设计中竖向挠度的控制显得尤为重要。
At present, the application of creeper in our province is concentrated on urban afforestation, mainly used in vertical greening and protection of bank and road.
目前，爬山虎的应用在我省主要集中在城市园林绿化方面，大多用于垂直绿化和护坡护路。
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