阿里安5和当前正在使用的阿里安4相比，直径和贮箱容积以及推力都有了极大增加，还提高了可靠性要求。
Ariane 5 has a much larger they-diameter, tank capacity and greater thrust power than Ariane 4. The reliability of Ariane 5 also must be improved.
阿里安5和当前正在使用的阿里安4相比，直径和贮箱容积以及推力都有了极大增加，还提高了可靠性要求。
Ariane 5 has a much larger they-diameter, tank capacity and greater thrust power than Ariane 4. The reliability of Ariane 5 also must be improved.
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