单词	blade flutter
释义	blade flutter 叶片颤振
随便看	materials protection materials pull system materials purchase materials purchased materials purchased report materials purchase order materials purchase requisition materials purchase strategy materials purchasing materials purchasing and stock budget materials quality materials quality assurance directorate materials quantity variance materials rate materials receipt materials received note materials received report materials recovery materials recycling materials, repair, operation materials request materials requirement planning materials requirements planning materials requirements planning, MRP materials requisition