《淮南子·兵略训》
但如果用上硬弓，再借助弓弩的弹力发射出去，那么即使是犀牛皮做成的铠甲、皮制的盾牌也能被射穿。
假之筋角之力，弓弩之势，则贯兕甲而径于革盾矣。
However, if a stiff bow is used and an arrow is shot by the elasticity of the crossbow, even an armor made of rhinoceros hide and a leather shield can be shot through.