The Space Shuttle Challenger was destroyed 73 seconds after takeoff due on January 28, 1986 due to a faulty O-ring.
1986年1月28号，挑战者号航空航天飞机因为一个圆形截面环的错误导致在起飞73秒之后爆炸。
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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.
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。
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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.