“drought central China in 1942”的概念、定义、翻译、参考文献-科学参考

单词	drought central China in 1942
释义	drought central China in 1942 Encyclopedia 工学〔中国历史上重大的水旱灾害〕释 drought central China in 19421942年中原大旱中国20世纪40年代初发生在中原地区的特大旱灾。
随便看	countable base countable cardinality countable chain condition countable compactness countable covering countable degree countable dimension countable-dimensional countable distributivity countable-finite game countable Hilbert space countable infinity countable Lebesgue spectrum countable model countable ordinal number countable potency countable product countable semiadditivity countable set countable simplicial complex countable space countable subadditivity countable subset countable sum axiom countable superadditivity

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