significant figure
US /ˌsɪɡˈnɪf.ɪ.kənt ˈfɪɡ.ər/
UK /ˌsɪɡˈnɪf.ɪ.kənt ˈfɪɡ.ər/
1.
有效数字
a digit in a number that is not a leading or trailing zero, or a zero that is not a placeholder
:
•
The measurement 0.0050 has two significant figures.
测量值0.0050有两个有效数字。
•
When performing calculations, always consider the number of significant figures.
进行计算时，务必考虑有效数字的数量。