“双音多频”概念、定义、翻译-科学时代

单词	双音多频
释义	广播影视词汇手册双音多频 DTMF（dual-tone multifrequency）
随便看	concertina bellow concertina bellows concertina fold concertina fold concertina method of tariff reduction concertino concert instrument concertmaster concerto concerto concert of Europe concert of nations concerto grosso concert overture concert party concert party concert party concert pitch concert spirituel concession concession concession concession concession concession

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。