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He adjusted the slide projector to focus the image.
他调整了投影仪使图像清晰。
youdao
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The basic function of an overhead projector is similar to that of a slide projector.
投影仪的基本功能与幻灯机相似。
youdao
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The basic function of an overhead projector is similar to that of a slide projector.
投影仪的基本功能与幻灯机相似。
youdao