“马歇尔外部性”的概念、定义、翻译、参考文献-科学参考

单词	马歇尔外部性
释义	马歇尔外部性 Encyclopedia 经济学集聚经济释 Marshall externality马歇尔外部性由企业外部的包括市场区位、市场容量、地区分布、相关企业的发展水平、运输通信条件等因素所导致的生产费用的减少和收益递增。又称外部经济。
随便看	projective straight line projective structure projective subcone projective subspace projective surface projective symplectic group projective system projective system of topological groups projective technique projective tensor projective test projective theorem projective theory of surfaces projective topology projective torsion projective torsion tensor projective tower projective transfer projective transformation projective transformation group projective unitary group projective variety projective vector projective zero projectivity

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。