extrapolation
US /ɪkˌstræp.əˈleɪ.ʃən/
UK /ɪkˌstræp.əˈleɪ.ʃən/

1.
推断, 外推
the action of estimating or concluding something by assuming that existing trends or facts will continue or apply to an unknown situation
:
•
The report's conclusions were based on an extrapolation of current data.
报告的结论是基于对当前数据的推断。
•
It's a reasonable extrapolation given the circumstances.
考虑到情况,这是一个合理的推断。