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A convex lens is used to concentrate rays of light.

凸透镜用于聚集光线.

辞典例句

There are six various plane and concave - convex lens.

备有六种不同面型和凹凸透镜.

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He polished the convex lens of his telescope.

他擦亮了凸透镜的望远镜.

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Two kinds of convex lens which make parallel rays converge to the focal point are given.

本文给出两种能使平行光严格聚焦于一点的凸透镜.

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A convex lens causes rays to converge on a single point, the focal point.

会聚透镜使光线会聚于一点, 即焦点.

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Conclusion Wearing lower degree convex lens can reduce incidence rate of myopia in primary school students.

结论配戴低度凸透镜可降低小学生近视的发生率.

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Wearing lower degree convex lens can reduce incidence rate of myopia in primary school students.

配戴低度凸透镜可降低小学生近视的发生率.

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Methods Hypermetropia and myopia were induced by convex lens in front of eyes of 32 subjects.

方法在正常眼前放置正、负球镜,人工诱导单纯性远视、近视性屈光参差.

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