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But the general commercial satellite has the mature astronautics insurance.而一般的商業(yè)衛(wèi)星則有成熟的航天保險.Beijing astronautics flight control center erupts a warm applause at once.北京航天飛行控制中心旋即爆發(fā)出一陣熱烈的掌聲.Should NASA be split into sepa...

astronautics的音標：astronautics的英式發(fā)音音標為：[??str?'n?:t?ks]astronautics的美式發(fā)音音標為：[??str?'n?t?ks]...

n.太空航空學...