发射后两分钟内，火箭将使用载人航天器中广泛使用的发射-逃逸系统（launch-escape system，LES）。
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launch escape system [航] 发射逃逸系统 ; 发射脱离系统
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以上来源于: WordNet
The pusher escape system protects crew in the event of a catastrophic failure of the launch vehicle, enabling the crew vehicle to carry the crew to safety.
推逃生系统保护乘员在一个灾难性的运载火箭故障事件，启用载人飞船乘员进行安全。
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On the other hand acquiring this protein too slowly would give the immune system time to launch a response before the virus can escape - killing the virus and preventing infection, they said.
BBC: Flu virus 'knows when to attack'
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