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足迹化学提取法
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足迹化学提取法
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chemical extraction
足迹化学提取法
利用足迹中的物质成分与相关化学试剂中某些成分相互作用原理,产生化学反应生成有颜色的化合物或荧光物质,使得痕迹显色,增强与承痕客体表面的颜色反差,从而显现足迹的痕迹形态,再利用照相法对足迹等痕迹进行拍照固定的提取方法。
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The Peacock’s Gallbladder
the Pear Garden Monument inside You’an Gate of Beijing
The Pearl Phoenix
the pearl river delta city region
the Pearl river delta model
The Pear Stories
The Peasants
The Peasant Wedding
The Peddler and the Beauty
The Peking Magazine
The Pekin Syndicate Limited
The Penal Code of the Soviet Union in 1922
The Penal Code of the Soviet Union in 1960
The Pen League
The Pennsylvania Magazine
the pens unearthed in Qin and Han dynasties
The Peony Pavilion
the people
The people are more important than the ruler
The people are the foundation of the state
The People in The Picture
The people may be made to follow a path of action, but they may not be made to understand it
The People of the Cave
The People's Court Press
The Peoples Forced Migrated from Gansu Corridor in Northern Wei Dynasty
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