单词	勝以情
释义	同FEELING
随便看	physical database record type physical database，pdb physical data block physical data description language physical data independence physical data structure physical defect physical degree physical delivery physical delivery access unit physical delivery access unit--pdau physical delivery access unit，pdau physical delivery system physical dependence physical depreciafion physical depreciation physical description physical description area physical design physical design decision physical design exchange format physical design exchange format，pdef physical deterioration physical--deterioration physical development