The real problem of interstellar communication does not concern technology.

星际通信的实际问题不在于技术.

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Which kind of signal is most promising for interstellar contact?

在星际通讯中,选用哪种信号最有效 呢 ?

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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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We can rule out interstellar rockets, because they are far too slow.

我们可以把星际火箭除去, 因为它们太慢了.

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These elements become part of the interstellar gas and dust.

这些元素成了星际气体和星际尘埃的一部分.

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We will be interested in the heat capacity of interstellar gases.

我们感兴趣的是星际气体的热容量.

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A serious attempt at interstellar communication would be very expensive.

作一次星际通信的认真尝试可能很费钱.

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Collapsing interstellar cloud reverses its gravitational infall and expands outward into the relatively quiescent interstellar environment.

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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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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Such tumultuous, often visually spectacular, interstellar regions surrounding youthful stars are known as gaseous nebulae.

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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Asteroid has become commonplace to the readers of interstellar travel stories in science fiction magazines.

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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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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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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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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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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