The camber is the curvature of the cross section and the crown is the highest point of the camber. A vertical curve, clothoidic or parabolic, occurs at a change of gradient.是什么意思_The camber is the curvature of the cross section and the crown is the highest point of the camber. A vertical curve, clothoidic or parabolic, occurs at a change of gradient.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句