英语词汇“double concave”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	double concave
释义	double concave 基本例句双凹 Just as a double convex lens enlarges, so adouble concavelens reduces.正象双凸透镜可以放大那样，双凹透镜也可以缩小。
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