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    <title>Mscara de sombra</title>
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<h2 class="pHeading2">
Mscara de sombra
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Em monitores CRT, a mscara de sombra  uma placa de metal repleta de pequenos orifcios que  presa no interior do vidro da tela. Ela concentra os feixes das armas de eltron na parte de trs do CRT. A distncia entre esses orifcios  chamada de dot pitch.
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