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净辉是优派面向教育等专业市场推出的一个投影机产品系列,在这个系列中,针对其定位用户群作了一些优化设计,PC World中国实验室对其中的PJ557DC进行了评测。
NetFly is a projector product series launched by the ViewSonic for professional markets such as education. In this series, some optimized designs have been made for its targeted user base, and PC World China Labs has evaluated the PJ557DC.