当卫星发射时,巨大的运载火箭脱离发射台,缓慢地垂直向上升起,以减少空气磨擦所造成的功率损耗.当达到计算的高度(从几公里到2000～3000公里)便逐渐改变方向,转向接近水平的航向,并增加速度.在早已选好的轨道点上,关闭发动机,宇宙探测器便脱离运载火箭开始独自飞行.随后它的轨道形状、轨道在空间的位置, As the satellite launched, the huge launch vehicle, slowly off the launch pad and rising slowly upwards, reduced the power loss caused by air friction and gradually changed direction as the calculated altitude (from kilometers to 2000 to 3000 kilometers) Turn to near-horizontal course, and increase speed in the already selected orbit point, turn off the engine, the spacecraft will be off the launch vehicle and began to fly alone, then its orbit shape, orbital position in space,