tailboard

1.put the tailboard up and secure same with a length of wire.

将（汽车）背上开门竖起打开，并用一金属丝将其系住。

2.he leaped over the tailboard of the lorry like greased lightning.

他闪电般跃过卡车挡。

3.Locking mechanism of dumping body tailboard is one of the key problems in designing dump trucks.

了国外成熟变轨距轮对锁紧机构结构特点,分析了锁紧机构设计关键技术。