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宽吸收线类星体物理研究(1) || 毕业论文/职称论文/发表论文/论文发表——全科论文中心 关键词:类星体, 吸收线 [gap=957]Keywordsquasars, absorption lines
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双语例句原声例句
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事实上，若你们看见吸收线，你就能知道恒星中，存在着哪些元素。
In fact, if you see the absorption lines, you can tell what kind of elements are present in the star.
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当光从一个类星体划过太空，便会穿过将吸收线特征印在光谱上的气体云。
As light from a quasar travels through space, it passes through clouds of gas that imprint absorption lines onto its spectrum.
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氦元素首先在太阳上，发现，后来，在地球上发现，通过观察太阳光谱，中的吸收线。
So helium was first discovered on the sun before it was later discovered on Earth by looking at the absorption lines of the solar spectrum.
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It's - a suture or a stitch has to hold the wound closed so it has to have certain mechanical strength and imagine the problem of making something that's dissolvable so it disappears but also is strong enough to hold a wound closed reliably for a length of time.
能够拉紧切口的缝合线,就必须具有一定的机械张力,大家想像一下制造这种缝合线的难度,身体组织不仅要能吸收这种缝合线,而且这种线必须有足够的张力,一定时间内能够拉紧切口
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