题目：吉利博越发动机进、排气歧管总成装配工艺目录1.进、排气歧管的定义.............................................................................................................11.1排气歧管的定义..........................................................................................................11.2排气歧管的定义..........................................................................................................12.装配工作要求.........................................................................................................................12.1一般要求......................................................................................................................12.2工作前要求..................................................................................................................12.3工作中要求..................................................................................................................12.4工作后要求..................................................................................................................23.发动机进、排气歧管装配工艺.............................................................................................23.1准备物料......................................................................................................................23.2分装油轨喷油嘴总成..................................................................................................23.3分装节气门体..............................................................................................................33.4安装进气歧管主体......................................................................................................33.5安装排气歧管支撑板..................................................................................................43.6安装下隔热罩..............................................................................................................53.7安装排气歧管主体......................................................................................................63.8安装上隔热罩.....................................