单词：corneal vertex
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For many of us, walking in the rain can be a pleasant and even soothing experience. For those of us who wear glasses, though, drops of water on the lenses and obscured vision can have us running for c
发表于:2018-12-31 / 阅读(124) / 评论(0)
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激光手术，大饱眼福 For many of us, walking in the rain can be a pleasant and even soothing experience. For those of us who wear glasses, though, drops of water on the lenses and obscured vision can have us running for cover. Interested in re
发表于:2019-01-30 / 阅读(111) / 评论(0)
双语有声阅读
双语有声阅读
图 graph 子图 subgraph 有向图 digraph(directed graph) 无向图 undigraph(undirected graph) 完全图 complete graph 连通图 connected graph 非连通图 unconnected graph 强连通图 strongly
发表于:2019-02-01 / 阅读(146) / 评论(0)
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