“第一产业”的概念、定义、翻译、参考文献-科学参考

单词	第一产业
释义	第一产业 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	selection restriction selection rule selection set Selections of Classical Writings by Type Selections of the Five-character rhythm poems of the Tang Dynasty selection sort selection statistic selection theorem selection tree selection with arbitrary probability selection with equal probability selective selective absorption selective absorption coefficient selective absorption colored optical glass selective absorption of plant nutrients selective actinide extraction process selective angiography selective area epitaxy selective attention selective breeding of forest trees selective catalytic reduction Selective catalytic reduction control selective catalytic reduction system for nitrogen oxides Selective Commentaries on Painting

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。