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本报讯7月10日,3M推出了面向中高端市场的PL90X液晶投影机,相对市场上的普通液晶产品,其功能更全面,对比度更是普通
July 10, 3M introduced for the high-end market PL90X LCD projector, relative to the common LCD products on the market, its functions more fully, the contrast is even more common