届时地面控制人员将点燃助推器，把卫星送入预定轨道。
Ground controllers will then fire the booster, sending the satellite into its proper orbit.
但在发射点，轨道器一面是15层楼高的外挂燃料箱，两侧是两个固体火箭助推器。
But in launch position, the orbiter is perched on the side of its 15-story external fuel tank and flanked by two solid rocket boosters.
在与火箭分离之后，货运飞船将利用自身的助推器进入轨道位置。
After separating from the Ariane, the freighter will use its own thrusters to get to the orbiting outpost.
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