“ferns”的概念、定义、翻译、参考文献-科学参考

单词	ferns
释义	ferns Encyclopedia 理学植物学释 ferns; pteridophytes蕨类植物具有根、茎、叶分化，不产生种子的维管植物。大都为草本，少数为木本。
随便看	optically thick medium optically thin optically thin absorption optically thin emission optically thin medium optically thinner medium optically transparent electrode optically violently variable quasar optically violent variable quasar optically visible object optical machining optical magnetization switching optical manipulation optical mark reader optical mark reader, OMR optical mask optical material optical material parameters optical materials optical measurement optical measurement system optical measuring angle comparator optical measuring techniques in explosion and impact optical medium optical medium materials

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。