作业帮《告别2014,迎接2015》的英语作文怎么写?
来源：学生作业帮 编辑：作业帮 分类：英语作业 时间：2024/05/24 17:26:56
《告别2014,迎接2015》的英语作文怎么写?
100词左右
100词左右
Automatic transmission contain many gears in various combinations .In amanual transmission ,gears slide along shafts as you move the shift lever fromone position to another ,engaging various sizes gears as required in order toprovide the correct gear ratio .In an automatic transmission ,how ever ,thegears are never physically moved and are always engaged to the same gears .This is accomplished through the use of planetary gear sets .GOODBYG my 2014.