Engineers have spent 18 months redesigning the external tank and incorporating the changes recommended by the Columbia Accident Investigation Board.
报道说，工程师们花了18个月的时间重新设计外部燃料箱，同时参考了“哥伦比亚”号事故调查组提出的修改建议。
Earlier this week, a panel monitoring Nasa said the agency had failed to meet three of 15 recommendations made by the Columbia Accident Investigation Board for the safe resumption of shuttle flights.
本周早些时候，一个美国宇航局监督小组声称，宇航局未能满足哥伦比亚事故调查委员会为恢复航天飞机安全飞行而提出的15条意见中的3条。
Earlier this week, a panel monitoring Nasa said the agency had failed to meet three of 15 recommendations made by the Columbia Accident Investigation Board for the safe resumption of shuttle flights.
本周早些时候，一个美国宇航局监督小组声称，宇航局未能满足哥伦比亚事故调查委员会为恢复航天飞机安全飞行而提出的15条意见中的3条。
应用推荐