宇通

As China accelerated out of a planned economy, Yutong hitched a ride by helping to ferry workers back and forth between their hinterland homes and jobs in the booming coastal regions.

宇通客车为来往于内陆家乡和蓬勃发展的沿海地区的工人提供运输服务，搭上了中国加速摆脱计划经济的便车。

The conclusion is followed: ( 1) YuTong is the top corporation in the large& medium bus industry, with 20% market cake in 2004 ranking number one.

结论如下：（1）宇通客车是大中型客车的龙头企业，04年市场分额20%，位居第一；

The authors introduce the troubles inspection methods of the manual control switch, speed control switch, gas-pressure control switch and relay box of electromagnetic retarders used in Yutong coaches.

介绍宇通客车电涡流缓速器手控开关、速度控制开关、气压控制开关、继电器盒等故障的检测方法。