significant figure
讀音漢語翻譯
【計】 有效位, 有效數位, 有數字【化】 有效數字
英文解釋：
名詞 significant figure:
- 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)同義詞：significant digit