“双频拨号”的概念、定义、翻译、参考文献-科学参考

单词	双频拨号
释义	双频拨号 two-frequency dialling two-frequency selection
随便看	centre shaft centre sill centre-slot system centre socket back centre spool valve centre spread centre square centre staff centre-stitching centre strut centre support system centre suspension cord centre tap centre tap circuit centretap key (推挽放大器) centre-tapped secondary Centre telephone line centre tester centre-to-centre distance centre-to-centre method centre tube centre-type cylindrical grinder centre-type cylindrical grinding centre upsetting centre valve

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。