与"beam modulation frequency"相近的词条

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• beam layout
• beam level
• beam-limiting aperture
• beam limiting device
• beam loading、beam-loading
• beam modulation frequency
• beam monitor
• beam monitoring
• beam observation port
• beam observation rack
• beam of homogeneous energy
• beam of light
• beam of spectacles
• beam optics
• beam orifice
• beam-out energy

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