频率
发表于 2025-3-21 17:30:07
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哄骗
发表于 2025-3-22 00:18:28
Springer Praxis Bookshttp://image.papertrans.cn/c/image/228345.jpg
Ethics
发表于 2025-3-22 01:40:45
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交响乐
发表于 2025-3-22 06:42:58
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谈判
发表于 2025-3-22 10:29:51
Schalter und Schutzeinrichtungen,, Frederick and Irene1 Joliot-Curie. In that paper, they described how they had bombarded a piece of the gray, toxic metal beryllium with α (alpha) particles. shot out of a sample of the radioactive element polonium. What emerged from the experiment was a highly energetic yet intangible form of radi
Geyser
发表于 2025-3-22 16:29:44
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Geyser
发表于 2025-3-22 17:23:04
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Spinal-Fusion
发表于 2025-3-22 22:08:18
,Schutzmaßnahmen in Starkstromanlagen,d, that you were looking at a pulsar spinning on a pedestal. Paint a mark on the side of the pulsar near its equator. Now ask yourself: how fast would I have to drive in a car to keep up with that mark if the pulsar was spinning once a minute? Given a diameter of 20 km or so, you would in fact have
Obscure
发表于 2025-3-23 03:22:40
,Schutzmaßnahmen in Starkstromanlagen,even more important role in pulsar astronomy. Aside from the intrinsic scientific interest of this object, it lies at the center of two stories of scientific priority. Priority — who discovered something first — is a big issue in science. Major discoveries always rely on technology (and hence techno
analogous
发表于 2025-3-23 09:07:55
,Schutzmaßnahmen in Starkstromanlagen,nomers on their first real experience in an astronomical observatory. After enduring good-natured joking from more experienced observers that such novices had been allowed near a telescope, the pair had managed to book time on a rather small, almost antique telescope that was well past its initial p