英语词汇“opaque projector”是什么意思，“opaque projector”的读音、用法及例句翻译-乐坝网

词汇	opaque projector
释义	opaque projectorn.（名词） A projector used to view images of nontransparent materials, such as printed sheets or drawings.实物投影机：用来投射不透明物品，如印刷纸或图画等的投影机
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