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Minister of Beiyang
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Minister of Beiyang
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Minister of Beiyang
北洋大臣
中国清末总理各国事务衙门下管理直隶、山东、奉天三省对外通商、交涉事务,兼办海防和其他洋务的钦差大臣。又称北洋通商大臣、办理通商事务大臣。
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diffraction direction
diffraction disk
diffraction efficiency
diffraction factor
diffraction filter
diffraction-free beam
diffraction fringe
diffraction generator
diffraction grating
diffraction grating alignment measure
diffraction group
diffraction halo
diffraction image
diffraction intensity
diffraction limit
diffraction-limited beam
diffraction-limited imaging
diffraction-limited lens
diffraction limited system
diffraction-limited system
diffraction loss
diffraction measurement
diffraction method for polycrystal
diffraction methods
diffraction microscope
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