“Chinese historical dialects”的概念、定义、翻译、参考文献-科学参考

单词	Chinese historical dialects
释义	Chinese historical dialects Encyclopedia 理学中国历史方言释 Chinese historical dialects中国历史时期方言主要指汉语的地域方言。自先秦以降，汉语既有时代变化，又有各种方言的分布变迁，受纵横两方面交互影响，逐渐演变为现代汉语方言格局。
随便看	vector-point-diagram vector Poisson equation vector polygon vector polyhedron vector potential vector problem vector processor vector product vector quadruple product vector quantity vector quantization vector realization vector representation vector resolution vector retrieval model vector ring vector root vector search vector series vector set vector signal vector signal analyzer vector signal generator vector solution vector space

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。