求翻译：该载荷梁是小车组的连接机构，通过载荷销与小车连接；前小车、中小车和后小车通过载荷梁连接为一组“4车组小车组”，载荷梁也是承载载荷的直接构件；车组拐弯运行时，载荷销可在承载梁套筒旋转。是什么意思？

The load beam is the connecting mechanism of the car group, load pins and trolley connections; before the car, in the car after car load beam connected to a set of 4 car group car group, the direct component of the load beam is carrying the load; car group turning operation, the load pin in the bear

This load of the car Group, through connections with trolley load pin connection; the first car, small- and medium-sized car after car and attach the load to a group of "Group 4 car car group, load carrying load frame is also the direct component; the group is running around, the load pins can be ro

正在翻译，请等待...

The load beams are car Group agencies, through the connection load distribution and Dolly; former car, car after car and connected through a load beam for a set of "4 EMU car group", load beams are also direct component of the bearing load; turn EMU run time, load distribution in the bearing beam of