A lot of change means that the projects goals may still be in flux, which would mean that the NPV estimates may be partially or fully suspect.
有很多变化就意味着项目目标仍在变化，同时也意味着NPV评估部分或者全部都值得怀疑。
2
Sometimes the Numbers can be pretty dramatic; I mean, 2000 was a year of great flux in the markets because that's when the Internet bubble burst.
有些时候投资者的数量很大，像2000年市场的流动性很大，因为在那一年互联网泡沫破裂。
3
The rotating irradiation model for ND silicon presented in this paper gives distribution, mean value and heterogeneity of the thermal flux on the cross section of silicon.