Soil sufficiently different in properties from adjacent soils to warrant the use of a new soil-series name, but occupying a geographical area too small to warrant the issuing of such a new name.
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。