“electric switch board”的概念、定义、翻译、参考文献-科学参考

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单词	electric switch board
释义	electric switch board 电掣板
随便看	negative relief negative resist negative resistance negative resistance amplifier negative resistance bridge negative resistance characteristic negative-resistance device negative resistance device negative-resistance magnetron negative resistance oscillator negative resistance region negative resistance relay negative resistance repeater negative-resistance storage negative-resistance tube oscillator negative response negative reticulum negative ripple negative root negative rotation negatives negative saving negative scanning negative scotoma negative segregation