The influence of economic parameters on the results in reserve estimate is mainly the change of time in zero of pretax net cash flow, that is, the change of economic life.

经济参数的变化对储量评价结果的影响，主要改变了税前净现金流为零的时间，即改变了经济开采年限。

youdao

Analysts estimate its operating cash flow per share to be $13.80 in 2011.

分析师预 计，2011 年该公司的每股经营现金流将达到13.80 美元。

youdao

Instead of getting into a debate about when the system will actually go cash-flow negative (the latest estimate is 2017) or when the so-called trust fund will actually go broke (2040 is one forecast), the White House should emphasize the positive.

FORBES: Magazine Article

At 9 times my estimate for 2009 earnings and 4 times cash flow, it's cheap enough for a big, long run.

FORBES: Lift Up Your Eyes

It sells at eight times my estimate of 2009 earnings, five times cash flow (in the sense of net income plus depreciation) and 1.8 times annual sales.

FORBES: Quarter-Century Mark