“占线信号”的概念、定义、翻译、参考文献-科学参考

单词	占线信号
释义	占线信号 engaged signal engaged tone tone signal busy signal busy back signal busy tone signal
随便看	perineum perineurium per injection perinuclear body perinuclear chromatin perinuclear cisterna perinuclear halo perinuclear membrane perinuclear space period period-amplitude relation period analysis period-and-level start-up control periodate periodate lignin periodate oxidation periodate oxidized cellulose periodates period charge period closing date period control period cost period cut period-density relation period discontinuity

科学参考收录了1248194条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。