由转移透镜从最大广角到最大远距照相，流明产品在放映机根据32%削减。
By shifting the lens from maximum wide Angle to maximum telephoto, lumen output on the projector is curtailed by 32%.
由转移透镜从最大广角到最大远距照相，流明产品在放映机根据32%削减。
By shifting the lens from maximum wide Angle to maximum telephoto, lumen output on the projector is curtailed by 32%.
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