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幻灯
利用光线直线传播的特性,将图片或物体用光源均匀照明后放大投影到屏幕上,供多人观看的技术。通常又把幻灯片和幻灯机统称为幻灯。
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closed fishing season
closed-flux device
closed fork mounting
closed form
closed-form number
closed-form solution
closed formula
closed fuel cycle
closed function
closed geodesic
closed graph
closed-graph mapping
closed graph theorem
closed-graph theorem
closed grill
closed ground field
closed group
closed half-line
closed half-plane
closed half space
closed half-space
closed-head foam-water sprinkle system
closed hyperplane
closed hypersurface
closed ideal
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