This article introduces the methods of shopping, application and maintenance. Right and rational application effectively prolongs the projector's application life.
介绍了多媒体投影仪的选购、使用与维护方法，正确、合理的使用可有效延长使用寿命。
This article introduces the methods of shopping, application and maintenance. Right and rational application effectively prolongs the projector's application life.
介绍了多媒体投影仪的选购、使用与维护方法，正确、合理的使用可有效延长使用寿命。
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