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发表于 2025-3-21 16:18:09
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meritorious
发表于 2025-3-21 21:50:14
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Receive
发表于 2025-3-22 01:29:57
Martin Levineamily of linear drive coolers that address the requirements of the SADA family and first generation applications. The linear drive cooler maintains the FPA at the desired operating temperature. The coolers are highly reliable, have low input power, a quick cooldown time, have low audible noise & vib
Ancestor
发表于 2025-3-22 05:41:05
Martin Levinebasic principles of process control and studies the operating situations of helium plants, with emphasis on high level efficiency...A major issue is helium purity, and the book explains why helium is polluted, how to purify it and then how to check its purity, to ensure that all components are fille
Maximizer
发表于 2025-3-22 09:01:40
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自由职业者
发表于 2025-3-22 15:20:55
Martin Levineifferent refrigeration and liquefaction applications, (c.) the different processes that can be used and (d.) the methods to be adopted for choosing the components of a mixture and their concentration for different applications..978-1-4419-2690-6978-0-387-78514-1Series ISSN 0538-7051 Series E-ISSN 2199-3084
乏味
发表于 2025-3-22 19:40:26
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painkillers
发表于 2025-3-23 00:08:18
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detach
发表于 2025-3-23 04:23:02
Martin Levinend cryogenics begins has ne ver been weB defined. Most workers in the field have chosen to restrict cryogenics to a tem perature range below -150°C (123 K). This is a reasonable dividing line since the normal boiling points of the more permanent gases, such as helium, hydrogen, neon, nitrogen, oxyg
Fibrillation
发表于 2025-3-23 09:17:50
Martin Levined lacustrine, glacial, windblown, colluvium, and residuum..Common soil properties of Arctic soils are permafrost within 1–2 m of the surface, cryoturbation, cryodesiccation, and accumulation of segregated ice. Chemical and physical properties vary significantly in response to the action of the soil-