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ji guang
Pages: 51
Year: Issue:  8
Journal: Ocean World

Abstract: <正> 在地球南北极附近地区的高空,夜间常会出现灿烂美丽的光辉。有时,它像一条彩带;有时,它像一团火焰;有时,它又像一张五光十色的银幕。它轻盈地飘荡,忽明忽暗,发出红的、蓝的、绿的、紫的光芒。这种壮丽动人的景象,人们叫它“极光”。
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