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凹面镜
释义
凹面镜concave mirror 【化】 concave mirror 【医】 concave mirror 凹面镜āomiànjìng[concave mirror] 凹面的球面镜,平行光照于其上时,通过其反射而聚在镜面前的焦点上
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更新时间:2026/1/18 17:50:20