锰叉将翼轨适当延长以减小其冲击角，提高车速。

The manganese fork properly extends a wing rail to reduce an impact angle in order to enhance the train speed.

youdao

锰叉将翼轨适当延长以减小其冲击角，提高车速。

The manganese fork properly extends a wing rail to reduce an impact angle in order to enhance the train speed.

youdao