Ultra large military laser drilling machine, that is, drilling ultra deep underground military base, who can say, there is no online?.
Well, that's not true...... The current technology can not make the laser have so much energy to dig rock, but at present it still relies on large drilling rigs to dig underground military bases.
When it comes to state secrets, don't ask, even if someone else answers
Well, that's not true...... The current technology can not make the laser have so much energy to dig rock, but at present it still relies on large drilling rigs to dig underground military bases.
