present mean value

基本解釋

At present, the V_P/V_S ratio keeps in high value anomaly, we should be alert the occurrence of felt earthquakes when the mean value drop.
目前九江—瑞昌地震序列的波速比持續(xù)處于高值異常，應當警惕回落到平均值以下后發(fā)生顯著有感地震。
Secondly, get the income and risk of annual investment's effect on the whole project through analyze the mean and the variance of the net present value based on economic value added.
其次通過分析經(jīng)濟附加值基礎上的凈現(xiàn)值的期望和方差來分解出具體年度投資效益和風險對整個項目的影響。

Even though it's nowhere near cheap, that doesn't mean the SUB 25 can't present value to well-heeled bassheads, and we'll try to suss that out over the coming weeks.
ENGADGET: Paradigm SUB 25 subwoofer hands-on HD