defin.<口>挑战违抗defabbr.防御（=defense）abbr.延缓的（=deferred）abbr.定义（=definition）abbr.明确的（=definite）deflexion-angle偏斜角defining function定义函数defibrinogenation诱导去纤维蛋白法defilade position天然掩体deflagration wave爆燃波Defecation schema排便图式defoaming reagent消泡剂deficency pattern营养缺乏型图象defecation center排粪中枢,排便中枢defocusing effect散焦效应