介绍了小四轮拖拉机挂车气刹系统与挂车参数；
This paper discusses the parameters of trailer air brake system and trailers for small wheeled tractors.
拖拉机挂车机组工作时的动态载荷按其频率结构可分成四类。
The dynamic loads of engine in tractor-trailer unit are classified into four kinds with frequency structure.
膜片弹簧式气制动阀作为控制阀已广泛地应用于拖拉机挂车制动系统。
Diagraph spring pneumatic brake valve is widely used as control valve for tractor - trailer braking system.
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。
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.
对类似结构的挂车或拖拉机等的设计和计算具有理论指导意义。
The result is useful for designing and calculating semi-trailer and tractor that possesses the similar structure.
操作运输率达到60%，拖拉机拖车比例达到1：2，挂车守成交通道路运输的周转比例达到了12%以上。
The operation of trucks carrying rate of 60%, tractor trailers proportion with up to 1:2, rejection of the turnover in complete hang transportation road freight the proportion of the above 12%.
操作运输率达到60%，拖拉机拖车比例达到1：2，挂车守成交通道路运输的周转比例达到了12%以上。
The operation of trucks carrying rate of 60%, tractor trailers proportion with up to 1:2, rejection of the turnover in complete hang transportation road freight the proportion of the above 12%.
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