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1. The filmstrip projector is a great tool for showcasing educational materials.
电影带式投影仪是展示教育材料的一个很好的工具。
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2.The teacher used the movie projector to demonstrate how to solve complex equations.
老师使用电影投影仪来演示如何解复杂方程。
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3.The slide projector was used to create an interactive learning experience for the students.
幻灯片投影仪被用来为学生们创造一个互动学习体验。