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di 9 jie bei jing guo ji hang zhan shi ling
Author(s): 
Pages: 5-6
Year: Issue:  11
Journal: Ordnance Knowledge

Abstract: <正> 第9届北京国际航空暨机场设备展于2001年9月19日在北京国际展览中心开幕。赶在专业观众开放日,笔者和同事赴展会采访。航空航天工业是市场狭小,垄断性很强的产业,涉及的技术含量高,资金大,因而抬眼所见,也还都是那些熟
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