束以马具 发表于 2025-3-25 06:38:45
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Horst R. Thieme,Carlos Castillo-Chavezthis book to provide a comprehen sive account of the widely spread applications of nitrogen NMR. The relevant literature has been surveyed from the beginnings of NMR until early 1972. The steady annual growth in the number of references cited since 1965 is ample evidence of the ever increasing impo执拗 发表于 2025-3-25 14:21:59
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Joan L. Aron,P. Sankara Sarmaed in China. The discharge of sewage to the receiving water body leads to the deterioration of water environment and poses a great threat to human health. The pollutants in the wastewater mainly include organic matter, heavy metals, and nutrients like nitrogen and phosphorus. Particularly, the prese显而易见 发表于 2025-3-25 20:58:50
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Edward H. Kaplan,Peter C. Cramton,A. David Paltielof Calgary from July 14-18, 1980, and was jointly sponsored by the Canadian Society of Plant Physiologists and the International Association of Plant Physiologists. The subject matter of the book deals with various aspects of nitrogen and carbon metabolism, their interrelationships and interdependenSubstance-Abuse 发表于 2025-3-26 07:15:35
ases are oxidised forms of nitrogen, with fossil fuel burning, biomass burning and cultivated soils being their largest anthropogenic sources. (Figure 5.1). Unlike nitrous oxide, these gases are highly reactive, with short atmospheric lifetimes and the ability to cause severe illness and even death冥想后 发表于 2025-3-26 11:51:05
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