Myosin
发表于 2025-3-25 06:07:29
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cochlea
发表于 2025-3-25 10:36:05
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commodity
发表于 2025-3-25 11:49:23
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archaeology
发表于 2025-3-25 19:20:58
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防水
发表于 2025-3-25 21:55:08
,„Ich übernehme die Verantwortung!“,at many trace elements can be present as micrometer-size accessory minerals. For example, Zn and Cd occur in sphalerite? Cu in chalcopyrite; Zr and Hf in zircon? rare earth elements (REE), Y, and Th in monazite and xenotime. Fission-track results indicate that U can occur as micrometer-size grains o
chondromalacia
发表于 2025-3-26 03:21:23
,Die Banalität unserer Ich-Zustände,eveloped by SAI, Sunnyvale.. The PNAA technique is based on irradiating the coal with neutrons and simultaneously detecting the characteristic prompt gamma radiation resulting from thermal neutron absorption in various elements in the sample. Detailed elemental analysis of the sample is obtained thr
Stress
发表于 2025-3-26 05:44:55
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absolve
发表于 2025-3-26 10:34:06
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神圣将军
发表于 2025-3-26 14:08:38
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CESS
发表于 2025-3-26 19:19:02
,„Ich übernehme die Verantwortung!“,d fossil fuel research.. This paper will present a brief description of several relatively new analytical methods which, together with more established techniques such as the scanning electron microprobe, provide a comprehensive array of methods for materials analysis. These methods, which are being