tractor-trailer

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Last month in New York state, five girls who had just graduated from high school were killed when their SUV hit a tractor trailer and went up in flames.
上个月在纽约州，五名刚从高中毕业的女孩在她们乘坐的SUV撞击一辆拖拉机拖车并起火后死亡。
Mexican news outlets quote police officials are saying the driver of a tractor trailer overcorrected after going off road and then swerved into oncoming traffic , hitting the bus.
墨西哥新闻电视台援引警察的话说，这位拖拉机挂车司机，在马路上调整方向不当，在避开迎面来的车辆时，撞上了这辆公交车。
The tacky tractor trailers trucks.
破烂的拖拉机是用来拖卡车的。
But last August, after a fruitless, four-year search for a university teaching job, she began a different course of study, at the United Tractor Trailer School in central Ma ssachusetts.
花了4年时间寻找大学教书的工作机会却失望而归之后，去年八月，普雷昂·布瑞舍斯在位于马萨诸塞州中部的联合牵引式挂车学校开始了她另一门功课的学习。
But last August,after a fruitless,four-year search for a university teaching job,she began a different course of study,at the United Tractor Trailer School in central Ma ssachusetts.
花了4年时间寻找大学教书的工作机会却失望而归之后，去年八月，普雷昂·布瑞舍斯在位于马萨诸塞州中部的联合牵引式挂车学校开始了她另一门功课的学习。

a large truck in two parts, one in the front for the driver and one behind where goods are carried. The connection between the two parts can bend in order to help the vehicle turn corners.

A tractor-trailer is a large truck that is made in two separate sections, a tractor and a trailer, which are joined together by metal bars.

汽车列车
Because tractor-trailer is articulated by tractor and trailer with the fifth wheel flexibly, the control is much more complicated than that of tractor. The control must be accurate and coordinate, or the result will be terrible.
其次是单体牵引车和半挂汽车列车的稳定性控制。
三轴半挂车