“交直流振铃--交流—直流振铃”概念、定义、翻译-科学时代

单词	交直流振铃--交流—直流振铃
释义	电子通信与自动控制技术词汇手册 AC-DC ringing 交流—直流振铃，交直流振铃
随便看	policy policy policy analysis policy analysis policy anniversary policy argument policy assignment policy-based management policy-based management policy change policy clause policy clause policy condition policy coordination policy co-ordination policy credibility policy date policy decision policy decision policy dilemma policy dividend policy failure policy fee policy game policy harmonization

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。

AC-DC ringing