| 单词 | 凹面镜 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔reflecting telescope〕A telescope in which light from the object is gathered and focused by a concave mirror, with the resulting image magnified by the eyepiece.反射式望远镜：一种物体的光被凹面镜收集并集中的望远镜，所成图像被目镜放大美国传统 |
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