A system of naming polycyclic compounds originally introduced by Adolf von Baeyer in 1900 and since extended.
https://www.qmul.ac.uk/sbcs/iupac/vonBaeyer/ Information about the IUPAC system
科学参考收录了60776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。