significant figure
US /ˌsɪɡˈnɪf.ɪ.kənt ˈfɪɡ.ər/
UK /ˌsɪɡˈnɪf.ɪ.kənt ˈfɪɡ.ər/
名詞
1.
有效數字
a digit in a number that is not a leading or trailing zero, or a zero that is not a placeholder
範例:
•
The measurement 0.0050 has two significant figures.
測量值0.0050有兩個有效數字。
•
When performing calculations, always consider the number of significant figures.
進行計算時，務必考慮有效數字的數量。
在 Lingoland 學習這個單詞