单词	the tiller of a vessel
释义	英華字典資料庫同義詞☞the tiller of a rudder
随便看	physical database name physical database record physical database record occurrence 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