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A convex lens is thick in the middle a concave lens is thin in the middle

INTO JAPANESE

凸レンズは途中で厚い中間の凹面レンズが薄い

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Plano-convex-concave lens in the Middle thick Middle thin

INTO JAPANESE

薄い中間厚真ん中にプラノ凹凸レンズ

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Plano concave lens in the thin Middle thick Middle

INTO JAPANESE

薄い中間厚い中間平凹レンズ

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Thick medium thin medium concave

INTO JAPANESE

厚い薄い中凹

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Thick thin during recess

INTO JAPANESE

休憩の間に厚い薄い

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During the break in thick thin

INTO JAPANESE

厚さで休憩中に薄い

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During a break in thin thickness

INTO JAPANESE

薄い厚さで休憩中

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During a break in a thin thickness

INTO JAPANESE

薄い厚さで休憩中

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During a break in a thin thickness