翻译
  • 简明词典
  • 柯林斯词典
  • AI释义
  • AI解词
  • 牛津词典
  • significant digit

    • 英 [siɡˈnifikənt ˈdidʒit]
    • 美 [sɪɡˈnɪfɪkənt ˈdɪdʒɪt]

    释义

    • 有效数(字)
  • 英英释义

    Noun

    • 1. any digit of a number that is known with certainty; any digit of a number beginning with the leftmost non-zero digit and ending with the rightmost non-zero digit (or a zero considered to be the exact value);

      "he calculated the answer to four significant figures"

    收起英英释义
  • 行业词典

    • 数学

      有效数字   又称 :有效数字(significant figure )