bottom current

基本解释

Antarctic bottom current is the main influence aspects to the formation of polymetallic nodules.
南极底流是影响多金属结核形成的关键因素。
In the estuary region, surface residual current flows outward from the river mouth; but bottom residual current forms a convergence zone.
河口区的底层余流可形成辐合区，而表层余流则一致流出河口。
An empirical formula of depth-averaged velocity is derived by means of dimensional analysis, and at the same time the characteristics of the variation of bottom current velocity are described.
文中还利用量纲分析，导出了挖槽中心垂线平均流速折减系数的经验公式。

Rates have roller-coastered through two peaks and troughs in the past decade, and when the bottom of the current trough will be reached is anybody's guess.
ECONOMIST: Insurance
All of this suggests that even though we still haven't hit bottom on this current downturn--and some of the worst may be to come --investors, companies and employees--are already positioning themselves for the next upturn.
FORBES: A Season For Surprises
Bottom line, the current lousy economy may, in fact, be the best Obamanomics can do.
FORBES: Today's Lousy Economy May Be The Best Obama Can Do