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
视眼的理疗器，它有作为物镜的凸透镜、镜筒、目镜，还有头套和透镜组，它用于人们在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。
词
词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.
一种防治视眼的理疗器，它有作为物镜的凸透镜、镜筒、目镜，还有头套和透镜组，它用于人们在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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