“primary industry”的概念、定义、翻译、参考文献-科学参考

单词	primary industry
释义	primary industry Encyclopedia 经济学产业结构释 primary industry第一产业以利用自然力为主，生产不必经过深度加工就可消费的产品或工业原料的部门。是按“三次产业分类法”划分的国民经济中的一个产业部门。又称第一次产业。
随便看	inversion loop inversion monad inversion number inversion of a matrix inversion of an elliptic integral inversion of an integral inversion of a series inversion of configuration inversion of electrical logging inversion of gravity anomaly caused by density interfaces inversion of landform inversion of retrograde inversion operation inversion operator inversion pole inversion population saturation inversion poset inversion principle inversion problem inversion radius inversion semigroup inversion sphere inversion statistic inversion symmetry inversion table

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