与"beam cross section"相近的词条

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• beam-control(led) frequency system、beam-controlled frequency system
• beam-controlled system
• beam-control(led)system
• beam coordinate
• beam core
• beam cross section
• beam current
• beam current limitation
• beam-current monitor
• beam (-current)monitor
• beam decay rate
• beam decentricity
• beam-defining
• beam defining aperture
• beam defining clipper
• beam-defining diaphragm

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