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字词 透镜
释义 透镜tòujìng用透明物质(如玻璃)制成的镜片,根据镜面中央和边缘的厚薄不同,分为凸透镜和凹透镜。{lens; glass or other transparent material designed to fit into spectacles, being convex or concave according to its thickness at the centre and the edge of its surface}t
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更新时间:2025/3/9 23:03:55