对投影机亮度变暗的原因与维修、维护的范围及效果进行了分析,提出了维护、维修的方案及成本预测。
This article analyses the causes of making projector's luminosity darkling and introduces their maintenance ranges and effect and brings forward their schemes of maintenance and their cost.
为实现良好的颜色校准效果,就必须根据投影机的投影原理,精确地测量投影机在投影颜色方面的一些属性。
To achieve a good result of color calibration, we must measure some attributes of projected color precisely according to the theory of projection.
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