“negative sign”概念、定义、翻译-科学时代

单词	negative sign
释义	电子通信与自动控制技术词汇手册 negative sign 负号
随便看	secondary segmentation secondary series secondary sex characteristic secondary sex characteristics secondary sex ratio secondary sexual characteristic secondary sexual characteristic secondary sexual characteristics secondary sexual trait secondary shaping secondary shield secondary shielding secondary shutdown system secondary signal secondary signature secondary sludge secondary sludge secondary socialization secondary sorbite secondary source secondary source secondary source secondary source secondary source secondary source of job information

科学时代收录了1160609条科普词条，基本涵盖了常见科普常识及英语词汇的翻译，是科学学习和研究的有利工具。

negative sign