Extensive flat surface, found in hot deserts, consisting of salts that have accumulated in a shallow saline lake or playa. Evaporation then produces a crust of varying hardness.
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。