英语词汇“international ohm”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	international ohm
释义	> as lemmas international ohm In 1893, at the International Electrical Congress, a further definition of the ohm (the international ohm) was established. It was defined as the resistance of a 106.3 cm long column of mercury of constant cross-sectional area, with a mass of 14.4521 grams, held at a temperature of zero degrees Celsius. At the 1948 General Conference on Weights and Measures, the use of the international ohm was abandoned and the ohm was redefined in terms of the absolute ampere.extracted from ohmn.² < as lemmas
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