“标志层”的概念、定义、翻译、参考文献-科学参考

单词	标志层
释义	标志层 Encyclopedia 理学标志层释 marker标志层厚度较小且变化不大，岩性特征明显且稳定、层位稳定、分布范围广、易于鉴别、可作为地层对比标志的岩层。
随便看	Pontryagin invariant Pontryagin-Kuratowski theorem Pontryagin maximum principle Pontryagin multiplication Pontryagin number Pontryagin operation Pontryagin product Pontryagin space Pontryagin square Pontryagin surface Pontryagin theorem Pontryagin van Kampen duality theorem Pontryagin-van Kampen duality theorem Pontypool japanned wares Pontécoulant crater Pood pool boiling pooled pooled error pooled residential building pooled residential form pooled standard deviation pooled variance pool fire pool fire burning

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。