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真空电子器件电子束加工
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真空电子器件电子束加工
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工学
真空电子器件电子束加工
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electron beam microfabrication of vacuum electronic device
真空电子器件电子束加工
通过具有一定能量的电子束与固体表面相互作用来改变固体表面物理、化学性质和几何结构的精密加工技术。
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economics of corruption
economics of crime
economics of fisheries
economics of grassland resource
economics of information
Economics of Language
economics of regulation
Economics of Regulation and Antitrust
Economics of the Arts
Economics of the Public Sector
economic soft landing
economics of urban planning
Economics of Welfare
economic space
economic specific frictional head loss
economic spy
economic stabilization and development law
economic statistics
economic structure
economic structure of society
economic system
economic system reformation
economic systems engineering
economic take-off
economic territory
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