“signum（function）”概念、定义、翻译-科学时代

单词	signum（function）
释义	数学词汇手册 signum（function）正负号函数
随便看	tape image tape inclined position winding tapeinidium tapeinocephaly tape insulated coil tape insulation tape leader tapeless tape limit tapeline tape loop tape-loop storage tapeman tape measure tape mechanism tape mode tape music tape parity tape perforator tapeperson tape plane winding tape player tape player tape plotting system tape preparation unit

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。