发射后差不多三天时间,制动火箭启动了,阿波罗8号飞船进入了月球轨道。
Nearly three days after launch, the braking engines fired and the Apollo 8 capsule went into orbit around the moon.
最后,在围绕地球的轨道运行的时候,计算机会精确地计算出应该在什么时候发射制动火箭以重返大气层。
Finally, when in orbit round the earth, the calculators calculate exactly when to fire the retro-rocket to effect re-entry.
最后,在围绕地球的轨道运行的时候,计算机会精确地计算出应该在什么时候发射制动火箭以重返大气层。
Finally, when in orbit round the earth, the calculators calculate exactly when to fire the retro-rocket to effect re-entry.
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