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美国交通部提出了火箭商用发射出现的危险性报告。报告由三部分组成,商用发射的危险性;发射时的安全措施;危险程度的评价和分析方法。①发射前地面准备阶段和进入发射阶段的危险性。②发射前后、轨道运行和再入大
The U.S. Department of Transportation submitted a report on the dangers of a commercial launch of the rocket. The report consists of three parts, the risk of commercial launch; safety measures at launch; and the assessment and analysis of the degree of danger. ① ground preparation before launch and into the launch phase of the danger. ② before and after launch, orbital reentry