陈(chen)庆(qing)望(wang)着一双双正(zheng)在思索的目光(guang),又(you)继续笑道(dao):原因很简单,空气受热了(le)它(ta)就(jiu)会向上走,孔明灯(deng)里的空气受热,热(re)空(kong)气(qi)就把(ba)孔明灯托起(qi)来飞了(le),跑马灯也一样,顶部(bu)被堵(du)住,热空气出不(bu)去,它就会向旁边流去,使跑(pao)马灯(deng)转动(dong)起来,我刚才说的这些,听(ting)懂的请举手(shou)!
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