主题：【原创】关于我国的长征5火箭 -- 李诗雅

这次卫星发射失败，中国人自己的说法是嘴上级一台发动机出现问题，没有达到应有的推力，使得火箭没有到达预订高度。

In interviews here during the World Satellite Business Week conference organized by Euroconsult, China Great Wall officials said the Long March 3B placed Indonesia’s Palapa-D telecommunications satellite into a too-low orbit when one of its two identical upper-stage engines failed to deliver the necessary thrust.

They said the engine did not shut down. Instead, for reasons the inquiry board has been assigned to determine, the motor operated at a lower-power level during its second ignition.

可是我记得阿波罗13号发射的时候，也是有一台发动机出了问题，结果被宇航员关闭了，但是其他发动机多工作了一段时间，依然把飞船送上了预定的轨道。为什么中国的火箭不这么设计呢，如果一台出现问题，另外一台多工作一段时间.