intoxicate
发表于 2025-3-25 06:25:22
Martin Leviney JPL in a number of performance areas including thermal performance. A number of factors are used to evaluate the efficiency and cooling power of cryocoolers at cryogenic coldtip temperatures. A comparison of the measured thermal performance of several cryocoolers is presented..The various cryocool
发生
发表于 2025-3-25 11:02:56
Martin Levineced Infrared (IR) Imaging systems of the 1990s and beyond the Department of Defense (DOD) has established a family concept for the SADAs. The family concept for second generation systems consists of the SADA I, SADA II, and SADA III. The SADA family addresses the needs of high performance systems (C
聪明
发表于 2025-3-25 11:56:34
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CLAIM
发表于 2025-3-25 17:16:01
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Proponent
发表于 2025-3-25 23:08:21
Martin Levinease studies which will help the reader understand the princi.Most conventional cryogenic refrigerators and liquefiers operate with pure fluids, the major exception being natural gas liquefiers that use mixed refrigerant processes. The fundamental aspects of mixed refrigerant processes, though very i
催眠
发表于 2025-3-26 03:37:58
Martin Levineprac tical means of fabricating electrical components and devices with lossless con ductors. Using liquid helium as a coolant, the successful construction and operation of high field strength magnet systems, alternators, motors and trans mission lines was announced. These developments ushered in
使激动
发表于 2025-3-26 05:53:18
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积极词汇
发表于 2025-3-26 10:47:32
Martin Levine first time, how to cool objects to a temperature lower than had ever existed na tu rally on the face of the earth. The air we breathe was first liquefied in 1883 by a Polish scientist named Olszewski. Ten years later he and a British scientist, Sir James Dewar, liquefied hydrogen. Helium, the last
Mediocre
发表于 2025-3-26 16:04:42
Martin Levineermined by proximity to oceans, elevation, and latitude. Most of the circumarctic contains continuous permafrost. However, discontinuous, sporadic, and isolated permafrost may occur in the Low Arctic. Active-layer depths range from 0.4 to 2.0 m in the Low Arctic, from 0.4 to 1.0 m in the Mid-Arctic,
Enrage
发表于 2025-3-26 16:49:40
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