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PFD or may refer to: == Science, technology, and medicine == * Personal flotation device, a device designed to keep a wearer afloat in water * Partial Fraction Decomposition, a process used to reduce the degree of the numerator or denominator of a fraction * Phase Frequency Detector, a device which compares the phase of two input signals * Primary flight display, a modern aircraft instrument dedicated to flight information * Probability of Failure on Demand, see Safety Integrity Level * Process flow diagram, a diagram of the general flow of plant processes and equipment * Prepared for dyeing, a fabric or garment that is specially made to be dyed * Pelvic floor disorder or Postpartum pelvic floor dysfunction, a group of clinical conditions * Professional Disc, recordable optical disc format * Primary Frontal Dunes, National Flood Insurance Program designation for coastal dunes immediately landward and adjacent to the beach that reduce coastal flooding hazards 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「PFD」の詳細全文を読む スポンサード リンク
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