... 火箭发射筒 rocket launching tube 火箭发射者 rocketeer 发射导轨仰角位置 launcher elevation position ...
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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.
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