Published:
Judging from the ratio of the muzzle on the mini-projection, the diameter of the muzzle is already five meters in real life!
Miss Fortune calculated this data in an instant, and she couldn’t help being extremely astonished.
“Is it exaggerated?” She said dumbfoundingly: “Such a big main gun does look very safe, but what should I use it for? And it needs a lot of energy to use it once?”
“You don’t have to care about energy.”
Science explanation:
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