“directed technical change”的概念、定义、翻译、参考文献-科学参考

单词	directed technical change
释义	directed technical change Encyclopedia 经济学技术进步释 directed technical change有偏技术进步通过不同比例地改变要素之间的边际生产率，从而对不同要素具有不同节约或使用的技术进步。
随便看	nonnegative definite matrix nonnegative definiteness nonnegative definite quadratic estimate 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

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