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）defocus-dash mode去焦-注入方式defoliating insects食叶害虫defeasible argument可废止论证definable grey sets可定义灰色集defoaming lubricant消泡平滑剂defatted soy flakes脱脂豆粕defeaed belligerent战败国defocused reflector离焦反射镜defining vocabulary定义用词汇表defluvium defluxion脱落, 落下