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,它有作为物的凸、筒、目,还有头套和组,它用于人们在距时间用眼时戴在眼,可以使被视物的像清楚、放大和变远。
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,它有作为物的凸、筒、目,还有头套和组,它用于人们在距时间用眼时戴在眼,可以使被视物的像清楚、放大和变远。
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