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MTL - Warship of Great Power - Chapter 238 4,000-ton frigate (add more, please subscribe)
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... r is used when attacking. It will emit sound, and after reflecting back, determine the opponent's position, bind and shoot the torpedo. Therefore, once the opponent's active sonar hits it, it means that it will be hit by the opponent's torpedo. attacked. In underwater confrontation, active sonar is rarely used, because it is too exciting, and it is likely to misfire.
Passive sonar is like an ear, passively monitoring the target, it has three ways.
The earliest sonars were almos ...
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