Shortly after Discovery blasted off July 26, a nearly 1-pound chunk of foam insulation fell from the fuel tank -- the very thing that was supposed to have been fixed after dooming Columbia.
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释义
“发现”号7月26日点火升空后不久,一块近一磅重的泡沫绝缘材料从燃料箱上脱落,而当年“哥伦比亚”号正是毁于同样的问题,之后这个难题被认为得到了解决。
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