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单词 凹面镜
释义 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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