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measuring receiver
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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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infinitude
infinitude of elements
infinitude of primes
infinity
infinity axiom
infinity lemma
infinity of higher order
infinity of lower order
infinity of the same order
infinity postulate
infirm
infirmary
infirmatory
infix
infix notation
infix operation
inflame
inflammability
inflammable
inflammable and explosive article
inflammable charcoal
inflamm-aging
inflammation
inflammation imaging
inflammation of throat
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