The preferred suffix that is added to the geographical location of a type section or type area to form the name of a stage or age, e.g. ‘Dolgellian’, ‘Frasnian’, ‘Barremian’.
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。