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磁石
释义
磁石
Encyclopedia
医学
重镇安神药
释
magnetite
磁石
安神药。又称玄石、磁君。始载于《神农本草经》。氧化物类矿物尖晶石族磁铁矿,主含四氧化三铁(Fe3O4),晶体结构属等轴晶系。
理学
磁石
释
magnet
磁石
铁的氧化物矿物(Fe3O4或FeFe2O4),古代中国人称“慈石”,俗称“吸铁石”。又称磁铁矿。
Physics
>医学物理>磁医学>释义
magnet
磁石
loadstone
磁石,磁铁矿
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information redundancy check
information regulation
information replication technology
information reporting system
information representation
Information Research
information research
information resource allocation
information resource development
information resource industry
information resource integration
information resource management
information resource management model
information resource navigation
information resource planning
information resources
information resources construction
Information Resources Country Report of Russian(1999)
information resources guarantee system
information resource sharing
Information Resources Management:Policies and Regulations
information retrieval
information retrieval algorithm
information retrieval diversification
information retrieval evaluation
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