“阿普特克，H.C.”的概念、定义、翻译、参考文献-科学参考

单词	阿普特克，H.C.
释义	阿普特克，H.C. Encyclopedia 历史学〔历史学家〕释 Herbert Aptheker阿普特克，H.C. （1915-07-31～2003-03-17）美国黑人历史学家，马克思主义史学家和政治活动家。
随便看	non-negative definite quadratic estimator nonnegative divisor nonnegative element nonnegative function nonnegative integer nonnegative integral kernel nonnegative manifold nonnegative matrix non-negative matrix factorization nonnegative measure nonnegative number nonnegative operator nonnegative orthant nonnegative partial sum nonnegative quadratic form nonnegative semi-definite matrix nonnegative solution nonnegative splitting nonnegativity nonnegativity condition nonnegativity requirement non nesting matching non-nesting matching nonnesting matching non nesting partition

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