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单词 significant figure
释义 significant figureBrE /ˌsɪɡnɪfɪkənt ˈfɪɡə(r)/NAmE /ˌsɪɡnɪfɪkənt ˈfɪɡjər/ noun (mathematics 数学) each of the digits in a number that are needed in order to give it accurately 有效数字
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