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计算电容基准
释义
计算电容基准
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电学量计量单位的复现
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calculable capacitor
计算电容基准
横截面的尺寸无需测量而只需测定其轴向长度即能确定电容大小的特殊电容基准装置。由于能直接溯源至准确度更高的长度标准,所以成为各个国家的电容国家基准装置,用来复现和保持电学单位中的法拉(Farad)和欧姆(Ohm)。
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Book of Agriculture by Cai Kui
Book of Algebra and Al-muqābala,kitāb al-jabr wa al-muqābala
Book of algebra and al-muqābala,kitāb al-jabr wa-al-muqābala
Book of a Rainy Day
Book of Changes, inscribed on bamboo slips of Chu collected in Shanghai museum
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