名词
中文翻译：投影运算符
同义词：
['projection operator', 'projection operator', 'projection operator']
例句：
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1.The projector is a device that projectsimages onto a screen.
投影仪是一种将图像投射到屏幕上的设备。
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2. The projectionoperator is used to calculatethe distance between two points ona surface.
投影算子用于计算两个点在表面上的距离。
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3. The projectionoperator is used in computergraphics to simulate the effect oflight and shadow.
投影算子在计算机图形学中用于模拟光线和阴影的效果。