1. white close-grained wood of a tree of the genus Agathis especially Agathis australis. 
   贝壳杉属的树木（尤指新西兰贝壳杉）白色的纹理细密的木材。
2. A flightless bird(Gallirallus australis) of New Zealand, having mottled brown plumage and short legs. 
   秧鸡新西兰一种不能飞的鸟（新西兰秧鸡），有褐色带斑纹的羽毛和短腿
3. Any of several coniferous evergreen trees of the genus Agathis, especially A. australis of New Zealand, having broad leathery leaves. 
   贝壳杉一种贝壳杉属的针叶常绿树，尤指产于新西兰的新西兰贝壳杉，具有宽大的似皮革的叶子
4. There was a brilliant aurora-type display that night, which some scientists took to be associated with the sudden burst of ionization high in the atmosphere. 
   那天夜里出现了一种壮观的极光式景象，有些科学家认为，这种现象与高层大气中电离的突然爆裂有关。
5. These electrons create electrical effects, such as the aurora borealis, or Northern Lights, cause the disruption of radio transmissions, and increase the amount of ozone in the upper atmosphere. 
   这些电子产生了电效应，如极光，或北极光，造成无线电传送的中断，在大气层的上方出现臭氧量的激增。

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