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document conservation and preservation
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document conservation and preservation
Encyclopedia
管理学
文献保护
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document conservation and preservation
文献保护
为使馆藏文献免遭自然的和人为的损毁,延长文献保存期限和使用寿命,尽可能保持其原来形态的技术和措施。
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atomic shell structure
atomic site
atomic space
atomic spacing
atomic spectral analysis
atomic [spectral] line
atomic spectral line
atomic spectrometer
atomic spectroscopic term
atomic spectroscopy
atomic spectrum
atomic sphere approximation
atomic spin
atomic spin gyroscope
atomic spin magnetometer
atomic spontaneous deflection
atomic standard
atomic state
atomic statement
atomic stopping cross-section
atomic stripping
atomic structure
atomic structure factor
atomic structure of materials
atomic surface
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