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与"beam element"相近的词条

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• beam distribution
• beam divergence
• beam divergence angle、beam-divergence angle
• beam dosimetry
• beam ejection
• beam element
• beam emittance
• beam-ends
• beam energy degradation
• beam energy degrader
• beam energy degrading system
• beam energy loss
• beam energy maximization
• beam energy subtraction
• beam entrance
• beam excursion

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