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conservation and restoration technology of bone, horn and ivory collection
释义
conservation and restoration technology of bone, horn and ivory collection
Encyclopedia
历史学
〔藏品保护技术〕
释
conservation and restoration technology of bone, horn and ivory collection
骨角象牙类藏品保护技术
消除或减缓骨、角、象牙类藏品的病害和劣化的问题,满足骨、角、象牙类藏品长期保存和利用需求的方法和原理。
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Soyuz series launch vehicle
SO群
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SP
sp2 electronic hybrid orbital
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SP2杂化
sp2杂化
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sp^2电子杂化轨道
sp3 electronic hybrid orbital
sp^3 electronic hybrid orbital
SP3杂化
sp3杂化
sp3电子杂化轨道
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