调查显示，挑战者号发射当日低温，导致火箭推进器上橡胶O行环密封圈失效，进而引起爆炸性气体泄露。
Theinvestigation showed that low temperatures on the day of the launch caused arubber “O-ring” seal on one of the rocket boosters to fail, which led to a leakof explosive gases.
那就意味着卫星和助推火箭必须同步设计，这样消费者才不会为各种发射器多番比较。
That would mean satellite and launch rocket would have to be designed in tandem, so customers could not shop around for different launch vehicles.
研究者希望化学反应后产生的氢，不仅能发射火箭，也能为长时间的空间任务补充氢电池。
Researchers hope that the hydrogen products of that reaction might go beyond launching rockets, and also feed hydrogen fuel cells for long duration space missions.
有两次失败的教训：1986年1月刚刚发射过后，一个固体火箭助推器的O型圈密封泄漏导致的爆炸，使我们失去了挑战者号和7名宇航员。
There have been two failures: The shuttle Challenger and seven astronauts were lost just after launch in January 1986 due to an O-ring seal leak in a solid rocket booster that led to an explosion.
不像垫0B大小的发射者，以及其他美国宇航局发射台，火箭将在垫答兴建叠放水平，而在一个坡道说谎。
Unlike those launched from pad 0b, and other NASA launch pads, rockets constructed at pad 0a will be stacked up horizontally, while lying on a ramp.
火箭在发射台上爆炸，将许多工程人员，设计者和官员活活烧死或闷死。
The rocket exploded on the launch pad, burning alive and asphyxiating engineers, designers and officials.
一架美国“捕食者”发射了火箭。
在火箭发射过程中，火箭推进器与主体脱落时，夜空“变魔术”般出现两个发光的棍状物体，更让天文爱好者们着迷。
In the rocket during launch, the rocket boosters and the main off, the night sky, "magic" as there are two shiny stick-like objects, leaving fascinated by astronomy enthusiasts.
在火箭发射过程中，火箭推进器与主体脱落时，夜空“变魔术”般出现两个发光的棍状物体，更让天文爱好者们着迷。
In the rocket during launch, the rocket boosters and the main off, the night sky, "magic" as there are two shiny stick-like objects, leaving fascinated by astronomy enthusiasts.
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