“return on agricultural investment”的概念、定义、翻译、参考文献-科学参考

单词	return on agricultural investment
释义	return on agricultural investment Encyclopedia 管理学[农村发展理论与实践]释 return on agricultural investment农业投资收益率农业投资项目在正常生产年份净收益与投资总额的比值。
随便看	proper base proper character proper characteristic element proper charge density proper chord proper circle proper circular domain proper class proper coloring proper complex orthogonal group proper component proper concave function proper cone quasi convex function proper cone quasi-convex function proper congruence proper conic proper continuum proper conversion proper convex body proper convex cone proper convex function proper convex set proper cover proper cutset proper cycle

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。