单词	色酮类
释义	色酮类chromones
随便看	vacuum tube characteristic vacuum tube circuit vacuum-tube clipping circuit vacuum tube detector vacuum-tube detector vacuum-tube electrometer vacuum tube galvanometer vacuum tube galvanometer {electronic galvanometer} vacuum tube generator vacuum tube glass vacuum tube glass {electronic tube glass} vacuum-tube modulator vacuum tube oscillator vacuum-tube oscillator vacuum-tube oscillator; valve oscillator vacuum tube-- q type vacuum tube rectifier vacuum-tube rectifier vacuum tube relay vacuum-tube relay vacuum tubes vacuum tube switch vacuum tube transmitter vacuum tube voltmete vacuum tube voltmeter