英语词汇PNdB是什么意思，PNdB的用法、释义、翻译、读音、例句、短语词组-英汉汉英翻译词典

单词	PNdB
释义	PNdB　 abbr.perceived noise decibel(s) 感觉(或可闻)噪声分贝
随便看	negative transconductance oscillator negative transfer negative transfer negative transmission negative transpose negative trigger negative triggering pulse negative trophotropism negative tropism negative twist negative type photoresist negative utility negative valence negative valence negative valency negative value negative value negative variance negative variation negative venous pulse negative verification negative vertical divergence negative virtue negative voltage negative voltage feedback

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