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对镜面上遗留的指印采用280B-4型比对投影仪,进行消除重影并利用透射复印法进行固定做了探讨,同时拓宽了280B-4型比对投影仪的应用范围.
Model 280B-4 contrasting projectors were used for the fingerprints left on the mirror surface, and the ghost elimination and fixing using the transflective method were discussed. Meanwhile, the application range of the 280B-4 type contrast projector was broadened.