| 单词 | overhead projector |
| 释义 | overhead projector overhead projector n.（名词）A projector capable of projecting enlarged images of written or pictorial material onto a screen or wall from a transparency placed horizontally below the projector and lighted from underneath.高射投影机：一种能将书写或图象的放大影像投射于屏幕上或是墙上的投影器，光线从投影器下面射出，幻灯片平放于投影器下方 |
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