DEGS=Diethylene Glycol Succinate 二甘醇琥珀酸酯degabbr.程度(=degree)degenerative oxidizing conditions降级氧化条件degenerative art hropathy of knee退行性膝关节病degenerative complicated cataract变性性并发性白内障Degumming loss percentage of silk生丝练减率deglutition disorders/etiology吞咽障碍／病因学degressive double crossing-over消减性双交换degeneration of natural grassland天然草场退化degenerative frozen soil for ages多年退化性冻土degenerative electronic controller负反馈电子控制器Degeneration of cervical vertebrae颈椎退变