“umbo”的概念、定义、翻译、参考文献-科学参考

科学参考收录了1248194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。

单词	umbo
释义	umbo 鳞脐壳顶
随便看	repeat feed repeat formation tester (RFT) repeat frequency repeat glass repeating repeating amplifier repeating audit repeating center repeating coil repeating-coil bridge cord repeating coil rack repeating current metre repeating data repeating decimal repeating decimal fraction repeating flash tube repeating group repeating instrument repeating key repeating mechanism repeating motion repeating motor repeating nova repeating part repeating point