2013届毕业设计说明书 1 目录 1 前言 ························································· 2 1.1 课题背景及意义 ·············································· 2 1.2 扫路车概述 ················································· 2 1.3 国内外扫路车发展现状 ········································ 5 1.3.1国外发展现状 ··········································· 5 1.3.2国内发展现状 ··········································· 5 2 整车结构布置