“上凹底”的概念、定义、翻译、参考文献-科学参考

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。

单词	上凹底
释义	上凹底 push-up
随便看	duplex circuit duplex communication duplex communication system duplex computer duplex computer system duplex continuous integral fin tube duplex control duplex crank press duplex dialling duplex doubleacting pump duplex double-action press duplexer duplexercoupler duplexer of wave-guide system duplex escapement duplex facsimile equipment duplex feedback amplifier duplex feeding duplex fibre duplex filter duplex fitting duplex flax hackling machine duplex fuel noz(zle) duplex furnace duplex ga(u)ge