“玛瑙杯”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	玛瑙杯
释义	玛瑙杯 agate cup
随便看	directive wheel directivity directivity angle directivity characteristic directivity diagram directivity factor directivity function directivity gain directivity index directivity pattern direct jump direct labor standard direct labour direct laryngoscope direct laryngoscopy direct laryngoscopy with dilatation direct laryngoscopy with drainage direct laying direct lending direct liability direct light direct-light illuminant direct lighting direct light reflex direct limit