单词	metallic O ring
释义	metallic O ring 化金属“O”形圈
随便看	Squadron Leaders squadron liaison officer squadron maintenance area squadron management Squadron Manpower Document squadronmate squadronmates squadron,medical squadron medical officer Squadron Navigation Officer squadron operations room Squadron Organizational Manual Squadron Recreation Officer Squadron Reinforcement Units squadrons Squadron Service Unit squadron signal officer squadron signals officer Squadron Supervisory Console Squadron Supervisory Station Squadron Support Center Squadron Tactical Analysis Board squadron torpedo officer squadron wireless officer squadroom