“Maastrichtian Stage”的概念、定义、翻译、参考文献-科学参考

单词	Maastrichtian Stage
释义	Maastrichtian Stage Encyclopedia 理学〔上统〕5释 Maastrichtian Stage马斯特里赫特阶白垩系或上白垩统的最后一个阶。
随便看	photometer head photometering photometric photometric absolute magnitude photometric accuracy photometric bench photometric binary photometric calibration photometric catalogue photometric data system photometric diameter photometric distance photometric double star photometric element photometric ellipticity photometric error photometric index photometric instrument photometric instruments photometric measurement photometric measurement method photometric method photometric night photometric orbit photometric paradox

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。