Equations of steady drawdown, seepage velocity, quasi steady time and ideal well distance were obtained through analytic seepage equation.

通过分析理论解，从中得出稳态降深方程、稳态渗流速度方程、准稳态时间方程和理想井间距方程。

youdao

A drawdown is measured from the time a retrenchment begins to when a new high is reached.

资金回撤的度量是从资金开始下滑的时间开始，直到出现一个新的高点。

youdao

It's drawdown time and pretty soon we'll be out like we got out of Vietnam, like we got out of other colonial wars.

BBC: William Hague

Austin led our military efforts at a particularly important time, overseeing the drawdown of U.S. forces and equipment while simultaneously helping to ensure that hard-fought security gains were preserved and that Iraqis could secure and govern themselves.

WHITEHOUSE: Lloyd Austin to Lead U.S. Central Command

This is a polite way of saying what Robert Gates, the previous defence secretary said more baldly, that having seen the paltry defence efforts that Europe is willing to make, its time for the US to drawdown.

BBC: Re-ordering of priorities in new US defence strategy