rifling
Rifled firearms date at least to the 15 th century.
有膛线的武器最早可以追溯到15世纪。
—— 给力词典精选The parts of a gun that make up the breech.
一种火器;有膛线炮的或在来复枪内有内螺旋形槽线的。
—— 给力词典精选BULLET a shaped projectile designed to be shot trough the rifled barrel of a gun.
设计成一定形状的射弹,通过制有膛线的枪管发射。
—— 给力词典精选