陪审团每个人
发表于 2025-3-28 17:43:54
Willkommen in der Welt, wie sie wirklich istEnvironmental pollution, petroleum geochemistry and characterization, design and operation of refinery plants, and quality control of end products are some of the most important problems associated with trace metal content of petroleum (1–5).
我就不公正
发表于 2025-3-28 22:49:25
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Gratulate
发表于 2025-3-29 00:30:28
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PANG
发表于 2025-3-29 05:04:43
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ARIA
发表于 2025-3-29 08:09:26
Determination of Trace Element Forms in Solvent Refined Coal Productss found to be approximately 76 ppm, thus ruling out U minerals. In SRC I it was established that Ti, V, As, Ga, Fe, Zn, and Se showed distinct organic affinity and that these elements were probably present as metal-organic complexes or complexed in the asphaltene or preasphaltene structure. The natu
intention
发表于 2025-3-29 11:42:13
Development and Calibration of Standards for PNAA Assay of Coalandards which would be used in future PNAA field systems. This set has to cover a broad range of different types of coals, taking into account physical characteristics and elemental compositions. The present set of standards was calibrated against the sampling and analytical ASTM methods which were
Infant
发表于 2025-3-29 18:06:58
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mettlesome
发表于 2025-3-29 23:08:18
Investigation of Coal Hydrogenation Using Deuterium as an Isotopic Tracervered from the reaction products. The results indicate that not only hydrogen donation but also hydrogen exchange involving the α-positions of tetralin can have a significant role in stabilizing the fragments that form during the thermal decomposition of the coal. In addition, evidence was obtained
魔鬼在游行
发表于 2025-3-30 02:38:20
Führung als soziales Emergenz-Phänomenmposition of the bitumen, to determine possible metal species in the bitumen, and to relate these to modes of origin..Neutron activation analysis has been used to determine V, Ni, Fe, Co, Mn, Cr, Zn, Na, Rb, Cs, Se, Hg, Br, As, Sb, CI, Se, Eu, and Ga in samples of McMurray Formation bitumen extracte
intrigue
发表于 2025-3-30 06:45:06
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