“insurance for old-age”概念、定义、翻译-科学时代

单词	insurance for old-age
释义	保险词汇手册 insurance for old-age 老龄保险，老年保险
随便看	signal hypothesis signal hypothesis signal intensity signal isolation signal jamming signal lamp signal lamp signal lamp signal learning signaller signal level signal lights signalling signalling signalling device signalman signal modulation signal multiplier signal-noise ratio signal-noise ratio signal-noise ratio signal-noise ratio signal-noise ratio--signal-noise ratio (SNR) signal-noise ratio (SNR) signal output

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。