单词	feeble beam
释义	feeble beam 弱束
随便看	polarity growth polarity histogram polarity hold polarity hold latch polarity holdlogic symbol polarity hyperinterval polarity hyperzone polarity hypothesis polarity identification polarity identify polarity index polarity indicator polarity indicatorcurrent indicator polarity information Polarity inheres in a magnet polarity in metasomatism polarity insensitive polarity interval polarity inversion polarity inversion transistors polarity inverter polarity inverting amplifier polarity-inverting amplifier polarity item polarity lamp