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AC current standard
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AC current standard
Encyclopedia
工学
交流电量计量
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AC current standard
交流电流基准
建立和保存交流电流量值的国家级计量装置。电流标准的频率范围较宽,从工频50赫兹向上至100千赫。
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neurosurgical operation instruments
neurosyphilis
neurotensin
neurotic disorders
neuroticism
Neuroticism-Extroversion-Openness Personality Inventory
neurotoxicity
neurotoxic shellfish poisoning
neurotoxin
neurotransmitter
neurotransmitter coexistence
neurotransmitter transporter
neurotrophic factor
neurovascular unit
neurula
neurula stage
neurulation
Neustadt
Neustadt International Prize for Literature
neuston
neuter flower
neutral
neutral absorbent
neutral aluminium air cell
neutral atmosphere
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