DEFKn.二极管发射极输出器逻辑电路defabbr.防御（=defense）abbr.延缓的（=deferred）abbr.定义（=definition）abbr.明确的（=definite）Defibrase treatment降纤治疗defining procedures界定程序defficiency disease营养缺乏病deflagraing mixture爆燃混合物defloculating agent反絮凝剂defruiter equipment反干扰设备defoaming mechanism消泡机理Defatted wheat germ脱脂麦胚defeasible interest可解除之权益defining occurrence定义性出现