San liang, also known as automobile tail plate liftingtail board, tail plate loading and unloading, liftingtail plate, hydraulic tailgate.
三良尾板也叫汽车升降尾板、装卸尾板、起重尾板、液压尾板。
2
The forces on the lifting lug in the upper and tail of the vertical vessel were analyzed, and the strength calculation and formula were presented.
分析了直立设备的顶部吊耳及尾部吊耳的受力，提出了其强度核算的方法及公式。
3
Moreover, there are fourteen functional accessories with eight kinds, such as pneumatic presser foot lifting mechanism, pneumatic trimming device and vacuum (the head and the tail) chin cutter etc.