“null-homotopic map”的概念、定义、翻译、参考文献-科学参考

单词	null-homotopic map
释义	null-homotopic map Mathematics ＞拓扑学与几何学＞代数拓扑学＞释义 null-homotopic map零伦映射
随便看	personal sampling personal security inspection personal selling personal software process personal software process, PSP Personal space personal space personal stereo personal striving personal study bibliography personal unconscious Person and Reality: An Introduction to Metaphysics Personas Persona satellite person centered therapy person-environment fit theory person identification personified exchange person in charge of an administrative organ person-in-situation person-job fit personlized instruction Personnel personnel archives of Tang Dynasty personnel assignment problem

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。