In the film, however, it's not "no voice", it's just "another voice" submarine.
As long as there is an announcement: its sound signature is "magma displacement", then it can be detected by sonars all over the world.
So, is this film still necessary? ? ?
In fact, in the chase and battle process at the end of the film, all the ships, submarines, both the enemy and the enemy, have no difficulty detecting its every move. Am I wrong?
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