“底阀”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	底阀
释义	底阀 bottom valve foot valve
随便看	voice frequency binary-code sendind equipment voice frequency carrier voice frequency carrier telegraph voice frequency channel voice frequency circuit voice-frequency circuit voice-frequency circuit-test unit voice-frequency dialing voice-frequency electric waves voice frequency multi-channel carrier telegraphy voice frequency pulsing voice-frequency relay voice frequency repeater voice-frequency repeater voice-frequency ringing voice-frequency sender voice-frequency signalling voice frequency signalling current voice frequency telegraph voice-frequency telegraph system voice frequency terminal equipment voice frequency terminating equipment bay voice frequency (VF) voice grade voice-grade channel