DEFP迪夫普毒气defabbr.防御（=defense）abbr.延缓的（=deferred）abbr.定义（=definition）abbr.明确的（=definite）deflating valve放气嘴defecation tank澄清釜,加灰罐deflating index调节指标,减缩指数defomaing agent去污剂defibrated wood纤维分离的木材defoaming agent去沫剂,防泡剂defining method制定方法defining module定义模defocused image离焦像,散焦像defocusing lens发散透镜