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convex lens

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A physiotherapeutic apparatus for preventing and treating near sighted eye has a convex lens used as objective lens, lens cone, eyepiece, headgear and lens set.

一种防治近视眼的,它有作为物镜的凸透镜、镜筒、目镜,还有头套和透镜,它用于人们在近距离上长时间用眼时戴在眼上,可视物的像清楚、放大和变远。

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相似单词


converting, convertiplane, convertite, convertor, convex, convex lens, convex polygon, convex-concave, convexification, convexity,