英文含义
DDFR的全称：Discrete Decreasing Failure Rate | 中文意思：───离散降低故障率
DDFR的全称：Distributed Digital Fault Recorder (General Electric) | 中文意思：───分布式微机故障录波器(通用电气)
DDFR的全称：Dansk Donaldist Forening RAP (Danish: Danish Donaldist Association; Donald Duck fan club) | 中文意思：───丹麦语Donaldist取证说唱(丹麦语：丹麦Donaldist协会；唐老鸭的粉丝俱乐部)