短語詞組短語digital l envelope 數(shù)digital image envelope 數(shù)字圖像信封Digital Quadrature Envelope Detection 正交數(shù)字包絡(luò)檢波digital envelope detection 數(shù)字包絡(luò)檢波digital envelope analysis model dea 模型digital signature and digital envelope 數(shù)字簽名及數(shù)字信封 返回 digital envelope