Before driving away, re-check the trailer coupling.
把车开走前，请再检查一下拖车的挂钩。
Physically simulated truck and trailer coupling (option).
物理模拟卡车和拖车耦合(选项)。
The coupling heads are used for connecting the tow-line Compressed air Braking system of tractor and a trailer.
气制动接头用作牵引车与挂车之间的气路连接，可适用各类气制动车辆与挂车的连接气路。
The coupling heads are used for connecting the tow-line Compressed air Braking system of tractor and a trailer.
气制动接头用作牵引车与挂车之间的气路连接，可适用各类气制动车辆与挂车的连接气路。
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