Nibble
发表于 2025-3-25 07:24:33
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是限制
发表于 2025-3-25 08:36:55
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Medicare
发表于 2025-3-25 13:12:40
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无所不知
发表于 2025-3-25 16:34:14
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tolerance
发表于 2025-3-25 22:51:25
Maria K. Houtchens,A. Dessa Sadovnicktromagnetic separator which is now under construction at A.W.R.E., Aldermaston. The machine is designed to produce milligramme quantities of stable isotopes and radioactive isotopes up to 1 millicurie strength. An effort is being made to secure a higher vacuum than has been used in the past, with th
aerobic
发表于 2025-3-26 03:00:37
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流动才波动
发表于 2025-3-26 05:18:24
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archetype
发表于 2025-3-26 11:43:08
Advancing Change Through Discovery,ecent modifications. Preliminary runs with lead and uranium showed that the design requirements (high resolution at 1 mA and 4% efficiency) could be met, and since plutonium isotopes were urgently required, active runs were commenced without further delay. At that time no other high resolution heavy
转向
发表于 2025-3-26 13:10:39
https://doi.org/10.1007/978-1-349-24580-2VON ARDENNE source. Thin plasmas (..= 10.) give inward bended caps as in all normal ion sources. This difference in shape means a difference in ion emission with a factor ten..The problem of an ion source with a high material efficiency is solved by the magnetic type ion sources. The .. source has a
regale
发表于 2025-3-26 18:11:23
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