The lateral termination of a stratum at the limit of its original deposition. There are two types: baselap and toplap, baselap being further divided into onlap and downlap.
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。