名词
中文翻译：大型投影仪
同义词：
['large projection', 'large projector']
例句：
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1.The large projector is perfect for presentations in classrooms.
大型投影仪非常适合教室的演示。
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2. We need a large projector to show the movie on the big screen.
我们需要一个大型投影仪来在大屏幕上放映电影。
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3. The large projector was used to display the map on the wall.
大型投影仪被用来在墙上展示地图。