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measuring receiver
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measuring receiver
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用作电平和衰减计量标准的仪器。是检定和校准信号发生器的频率、功率、调制频率、调幅深度、调频频偏、调相相偏、调制失真和信纳比等参数的必备仪器。又称校准接收机。
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lumichrome
Lumiere Gallery
lumiflavin
luminaire
luminaire efficiency
luminaire system for semiconductor lighting
luminal
luminal stent
luminance
luminance gain
luminance measurement
luminance meter
luminance meter calibration
luminance standards
luminary
lumination
luminescence
luminescence analysis
luminescence center
luminescence centre
luminescence decay time
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