The traditional investment decision methods, represented by Net Present Value method, compare the present values of expected income and coststream to decide.
传统投资决策方法以净现值法为代表，通过比较预期收入流和费用流的现值来进行决策。
2
The computer age triggered a seemingly endless stream of scientific data, but such incoming mountains of information come at a cost.
计算机时代催生了海量的科学数据，但如此让人仰止的信息大山也是要付出代价的。
3
opposition candidates argue that the steady stream of low-cost workers coming to Singapore depresses wages for Singaporeans, thus adding to their worries about rising prices.