It is to get the rocket going fast enough to escape Earth's gravity.
是为了让火箭的速度足够快，足以逃离地球的引力。
So we are burning up an enormous amount of fuel at every launch just to get the rocket up to what's known as escape velocity.
所以每一次发射我们都要耗费大量的燃料来让火箭达到所谓的“逃逸速度”。
Even the infamous bounty hunter Boba Fett could not escape the disgusting creature, as an out-of-control rocket pack deposited the armored hunter into the Sarlacc's gullet.
失控的火箭背包将声名狼籍的赏金猎人波巴·费特送入了沙拉克的食道，导致这位身穿盔甲的赏金猎人甚至都无法逃出这恶心的生物。
For maximum realism, the rocket comes complete with an escape hatch with exploding bolts. The hatch isn't finished yet, but it will be installed in this space.
为了获得最大的现实，火箭配有与爆炸螺栓逃生舱口。舱口还没有完成，但它会在这个空间安装。
The spacecraft, its Long-March II-F carrier rocket and the escape tower were fitted on the launch pad on Saturday.
航天器长征二号F运载火箭以及逃逸塔于上周六被安装在发射架上。
To escape the pull of the earth, a rocket must reach a speed of 28, 440 km/h.
为了摆脱地球的引力，火箭必须达到每小时28，440公里的速度。
To escape the pull of the earth, a rocket must reach a speed of 28, 440 km/h.
为了摆脱地球的引力，火箭必须达到每小时28，440公里的速度。
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