One Key Bar的意思|示意

This is one of the most key, can succeed in this great, the last bar is small, she is the fastest runner in our class.

这可是最关键的一棒了，能不能成功就在此一棒了，最后一棒是小芬，她可是我们班跑得最快的人了。

The crossing bar is one of the key parts of the bogie. It receives transverse direction, longitudinal direction and vertical load during the running of the vehicle.

交叉拉杆是转向架的关键部件之一，在车辆运行中承受横向、纵向和垂向载荷的共同作用。

Plug is one of the key deformation tools in cross piercing. Its function is turning a solid bar into a hollow bloom.

顶头是斜轧穿孔主要的变形工具之一，其作用是将实心管坯穿轧成一定壁厚的空心毛管。