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十字蕨目
小灌木,立体分枝,无叶片,产顶生孢子囊,主轴、侧枝和羽轴横切面初生木质部呈十字形的一类真蕨植物化石。
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reaction matrix
[reaction] mechanism
reaction mechanism
reaction mechanism model
reaction network in nuclear astrophysics
reaction of acrosome
reaction of ligands
reaction of polymer functional group
reaction of sulfur with hydroxyl radical
reaction order
reaction path Hamiltonian
reaction plane
reaction polarization
reaction prediction
reaction probability
reaction process control system
reaction process control systems
reaction processes of layer-burning
reaction process intensification
reaction product
reaction propulsion
reaction Q value
reaction Q-value
reaction rate
reaction rate coefficient
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