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长征五号火箭2006年立项至今,有上万航天人参与研制,各类试验和测试,有的要做上几百遍甚至上千遍。长征五号即将迎来它的第二次发射,进一步验证技术,为年底发射嫦娥五号做准备。长征五号是在去年首飞成功的,他的成功也意味着中国火箭进入世界第一阵容。那么,长征五号将对中国的航天事业带来怎样的带动作用呢?我们来听听长征五号火箭的总指挥王珏怎么说。

作为我国新一代的运载火箭中能力最强者,长征五号首飞成功,代表了我国航天技术水平的巨大提升,进入空间的能力得到了跨越式的发展。


航天科技集团一院长征五号总指挥王珏:比如说我们现在的国家的低轨的运载能力是在9吨到9.5吨,那么长征五号的低轨运载能力达到25吨。我们高轨的运载能力在5.5吨左右。那么长征五号一下把这个能力大幅提升到14吨左右。

王珏介绍,从上世纪九十年代开始,世界航天强国都在竞相研制大火箭,其中包括美国德尔塔和宇宙神五,欧洲的阿丽亚娜五,俄罗斯的安加拉火箭等,这些火箭大都采用了5米左右的大直径箭体,环保型的火箭推进剂,并达到了很强的运载能力。长征五号的出现,让中国运载火箭的能力再次跃居世界前列。

航天科技集团一院长征五号总指挥王珏:一个它首次把我们国家的箭体结构的芯机结构,从原来的3.35米,扩展到5米直径,第二是采用了无论是它的芯级动力,还是它的助推器的动力,都采用了无毒、无污染的绿色环保的推进剂。所以从这个指标来看的话呢,长征五号无疑是达到了目前现在世界大型火箭的前列。

一个国家进行航天活动的能力取决于它所能研制火箭的运载能力。随着长征五号研制工作的顺利推进,我国未来多项重大航天工程的实施也有了坚强的保障。
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