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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.

一种防治视眼的理有作为物的凸透筒、目,还有头套和透组,用于人距离上长时间用眼时戴眼上,可以使被视物的像清楚、放大和变远。

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boundless, boundlessly, bounds, boundscript, boundstone, bounteous, bounteously, Bountiful, bountifully, bounty,

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3G, 401(K), a,

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Crash Course Physics 速成课物理

Say we have a lens that has a spherical face on both sides, known as a convex lens.

假设我们有个具有球面的镜头 两侧,称镜。

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This is made possible through something called a lenticular lens – a corrugated sheet in which each ridge is made up of a convex – or outward-curving – lens.

这是种叫做柱状镜的东西实现的,柱状镜是种波纹状的薄板,其每个起处都由镜(即向外弯曲的镜)组成。

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bourdony, bourette, bourg, Bourgas, bourgeois, bourgeoise, bourgeoisie, bourgeoisification, bourgeoisify, bourgeon,

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3G, 401(K), a,
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