骄傲
发表于 2025-3-23 09:56:50
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护身符
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fertilizer
发表于 2025-3-23 20:18:14
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MURAL
发表于 2025-3-24 00:15:04
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散布
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让空气进入
发表于 2025-3-24 10:33:20
978-3-540-05950-9Springer-Verlag Berlin · Heidelberg 1972
渐变
发表于 2025-3-24 12:57:44
Photometric Methods in Quantitative Autoradiography,n of the density of silver grains above various structures or under varying conditions, or the determination of absolute quantities of radioactivity. In both these cases, photometric measurement serves for more rapid and more exact evaluation of grain densities than would be possible by visual counting of the grains.
Stagger
发表于 2025-3-24 14:51:40
Botanical Applications of Microautoradiography,ysiological problems in the plant sciences was slow. There may be several reasons for this, the most pertinent of which is the different nature of plant cells and animal cells. Although the microautoradiographic technique is applicable in principle to both plant and animal tissues, plant cells with
Pruritus
发表于 2025-3-24 20:54:42
Photometric Methods in Quantitative Autoradiography,n of the density of silver grains above various structures or under varying conditions, or the determination of absolute quantities of radioactivity. In both these cases, photometric measurement serves for more rapid and more exact evaluation of grain densities than would be possible by visual count
支架
发表于 2025-3-25 01:51:14
Microautoradiography of Water-Soluble Organic Compounds,lecules occurring in plant cells are composed mainly of H, C, N, O, P, and S. From nitrogen and oxygen no radioactive isotopes with sufficiently long half-life are available for use as tracers. .PO. = and .SO.=, when occurring as monoesters, can be precipitated as lead and barium salts respectively,