See bacillariophyta.
Single-celled algae with a resistant siliceous outer shell that enables them to be preserved in marine and freshwater sediments. For the use of diatoms in physical geography, see Mannion (1982) PPG 6: 233.
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。