名词
中文翻译：实物投影仪同义词
同义词：
['physical projector', 'physical slide projector']
例句：
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1. The teacher used a physical projector to demonstrate the concept of gravity.
老师使用了一个实物投影仪来演示重力的概念。
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2. The presentation was so clear that it was hard to believe it was made with a physical projector.
这个演示非常清晰，以至于很难相信它是用实物投影仪制作的。
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3. The students were amazed by the clarity and detail of the physical projector's display.
学生们对实物投影仪的显示清晰度和细节感到惊讶。