“sign changing amplifier”的概念、定义、翻译、参考文献-科学参考

单词	sign changing amplifier
释义	sign changing amplifier 符号变换放大器
随便看	tool tip grinding machine tool tip material tool tips tool van tool vehicle tool wagon tool withdrawal mark tool work tool world tool write-up card to order toosendan fruit toosendanin tooth tooth abrasion toothache toothache caused by fire of deficiency type toothache drop tooth addendum tooth angle tooth-angling mechanism tooth anlage tooth annulus tooth axe tooth bar

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。