名词
中文翻译：循环放映机
同义词：
['loop-up projector', 'loop-back projector']
例句：
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1. The loop projector is a device that allows you to play back video footage from a camera.
循环投影仪是一种允许你从摄像机回放视频片段的设备。
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2. The loop projector was used in the filming of the movie "The Great Race."
循环投影仪在电影《大竞赛》的拍摄中被使用。
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3. The loop projector was perfect for showcasing the company's latest product line.
循环投影仪非常适合展示公司的新产品线。