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合成樟脑
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合成樟脑
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合成樟脑
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synthetic camphor
合成樟脑
由松节油中的蒎烯经异构、加成酯化、皂化、脱氢、精制等过程所得的白色粉末状晶体。主要成分为莰酮-2,分子式为C10H16O,相对分子质量152.24。
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postal distribution
postal distribution net
postal distribution of newspapers and periodicals
postal facilitics
Post algebra
postal history
postal household
Postal Industry Standard System
postal kiosk
postal law
Postal Law of the People's Republic of China
postal man
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postal office
Postal Periodicals Catalog
postal pillar box
postal private mail box
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Postal Savings Bank of China
Postal Savings Bank of Vienna
Postal Scientific Research and Planning Academy
postal service
postal signs
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