These particles constitute the cores of the interstellar dust grains that may be coated with ice.
这些粒子构成了星际尘埃颗粒的核子,这些尘埃颗粒的外面也许覆盖一层冰.
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Our assertion that the interstellar gas is definitely no vacuum would seem all the more paradoxical!
我们坚持星际气体决非真空的主张看来愈发荒谬可笑了!
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Astronomers usually assume that interstellar dust is closely confined to the galactic plane.
天文学家通常认为,恒星际星尘都是紧靠着银河平面的.
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Thick clouds of interstellar gas absorb most of the light and screen other stars from us.
恒星间气体所形成的厚云层,吸收大部分的光,并遮住其他星星.
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这种环绕着年轻星的动荡且常常是壮观的星际区域,叫做气体星云.
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对于读过科幻杂志中星际旅行故事的读者来说,小行星已是平淡无味了.
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Fluorescent destruction occurs about once for every ten interstellar ultraviolet photons absorbed.
每吸收十个星际紫外光子,就会发生一次荧光破坏过程.
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Stars are born from a kind of primal soup known as the interstellar medium.
恒星是由一种称为星际介质的“原汤”形成的.
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坍缩的星际云克服向内的引力而向外膨胀到较宁静的星际环境中去.
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These could be designed to last long enough for interstellar travel.
这些机器可以设计得能坚持飞行足够长久以便用于星际旅行.
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至于造成这座星际雕塑品的始作俑者,我们可以在行星状星云的中心看到此恒星的尊容.
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Development of new methods of rocketpropulsion will make interstellar travel more practical.
火箭推进新方法的发展将于星际旅行更为可行.
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说明: 隔著星际空间凝视著我们的猫眼星云,距离地球有三千 光年 远.
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