Los ntawm qhov tsim nyog, cov cuab yeej siv feem ntau siv los ntawm cov tub rog yuav tsum, yam tsawg kawg, yuav tsum tau rugged, portable, thiab hnav. Raws li LCDs (Liquid Crystal Displays) yog me me, sib dua, thiab muaj zog ntau dua li CRTs (Cathode Ray Tubes), lawv yog qhov kev xaiv ntuj rau feem ntau milita ...
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