“sigmoidal fold”的概念、定义、翻译、参考文献-科学参考

单词	sigmoidal fold
释义	sigmoidal fold [sig`mȯid·ǝl `fōld] ^GEOLOGY A recumbent fold having an axial surface which resembles the Greek letter sigma.
随便看	radio emission radio energy radio engineering radio facility chart radio facsimile system radio fadeout radio fan-marker beacon radio field intensity radio field-to-noise ratio radio fix radio fixing aid radio frequency radio-frequency alternator radio-frequency amplifier radio-frequency bandwidth radio-frequency cable radio-frequency cavity preselector radio-frequency choke radio-frequency component radio-frequency current radio-frequency filter radio-frequency generator radio-frequency head radio-frequency heating radio-frequency interference

科学参考收录了103327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。