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    3. Is the safe laser beams can penetrate through smoke
    Is the safe laser beams can penetrate through smoke

    I am doing a new research to updrading the Evacuation systems in building using Laser.

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    0  Views: 389 Answers: 1 Posted: 13 years ago
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      1 Answer

      Lasers can do most anything.......


      ""

      12 years ago. Rating: 2
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