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  • 枫下茶话 / 和平之路 / 乌克兰正在研制水下无人机,俄国黑海舰队成为绝佳的试验目标。
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    • 就是水下无人潜艇吧 +1
      • Not sure whether it's capable of diving deeper. That would require a lot more things to control the buoyancy.
    • 水下无线电信号传输还是技术难题,总要录个脑袋收信号的话,很容易被发现 +1
      • 夜里还行。