pressure lag的意思|示意

The phase lag produced by the response of the well water level to variation of air pressure results from permeation of water between the well and aquifer.

由于水在井孔与含水层之间的渗流造成了井水位对空气压力变化的响应产生位相滞后。

But I also feel bad because of the lower pressure and the jet lag.

但是我还是因为低压和时差而感到难受。

The lag distance of abutment pressure behind working face increases, but the convergence coefficient of vertical stress doesn't change obviously with the increase of mining height.

分层开采与综放开采工作面滞后支承压力变化规律是，随着采高的增大，工作面滞后支承力的距离加大，垂直应力集中系数差别不大。