Traveling Through Military Industry Development

Ye Qiben was a college student. Due to an accident, he traveled to a parallel world and came to ancient times. What! ! You actually have guns, but this is too crude! Not yet, my toys are exquisite. What don't you believe? Come on, come on, I'll get you one, Well, it seems... Can I say I can't do it! Hey, don't hit me, don't hit me in the face! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.