单词	头胸
释义	头胸cephalothorax
随便看	operating amplifier operating--amplifier operating and maintenance costs operating and maintenance supplies operating angle operating asset operating basis earthquake operating basis earthquake{=obe} operating bias operating board operating bootstrap operating breakeven operating budget operating bypass operating cab operating capability operating capacity operating cash operating cash flow operating characteristic operating--characteristic operating characteristic curve operating-characteristic curve operating characteristic curve--occ operating characteristic curve (oc curve)