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-   -   Theoretically how to block a frequency wavelength 230-400 nm (https://www.askmehelpdesk.com/showthread.php?t=736137)

  • Feb 25, 2013, 12:51 PM
    ramon181
    Theoretically how to block a frequency wavelength 230-400 nm
    Hi, theoretically how to block frequency that has a wavelenght 230-400 nm ?
    Any measurements ?
    Thanks for help

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