“feudal hierarchy”的概念、定义、翻译、参考文献-科学参考

单词	feudal hierarchy
释义	feudal hierarchy Encyclopedia 历史学〔综述〕释 feudal hierarchy封建等级制度西欧封建主之间依据土地占有和人身依附关系而形成的一种等级关系。
随便看	catalyst lifetime catalyst manufacturing catalyst of methanol to olefins catalyst of methanol to propylene catalyst poisoning catalyst preparation unit catalyst regeneration catalysts catalysts and catalytic reactions catalyst selectivity catalysts of H2S selective oxidation catalyst strength catalyst utilization catalytic activity catalytic antibody catalytic biosensors catalytic chemical vapor deposition catalytic chemical vapor deposition, cat-CVD catalytic coal gasifaction catalytic coking catalytic colorimetry catalytic converter catalytic cracking catalytic cracking absorption stabilization system catalytic cracking additives

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