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欧州航天局的阿丽亚娜-4运载火箭现已占据了世界商业火箭市场的70%左右,主要是该火箭可靠性好、入轨精确(这样可以提高卫星寿命)、价格适中、可一箭双星或多星(搭载小卫星)、交货及时……然而,欧洲航天局并不满足,它又推出了新型大推力运载火箭阿丽亚娜-5。欧洲航天局原指望依靠阿丽亚娜-5火箭,保证其今后20年在世界卫星市场的主导地位,然
The European Space Agency’s Ariane-4 launch vehicle now occupies about 70% of the world’s commercial rocket market, mainly due to the reliability of the rocket and its precision into the orbit (this will increase satellite lifetime) at reasonable prices. Binary or multi-satellite (equipped with small satellites), prompt delivery ... However, the European Space Agency is not satisfied, it launched a new large-thrust carrier Ariane -5. The European Space Agency originally expected to rely on the Ariane -5 rocket to ensure its dominance in the world satellite market for the next 20 years