Determination of shooting depth under water table;
潜水面以下激发深度选取的理论分析
Mechanism of water table effecting reservoir pressure;
潜水面对储层压力的作用机制
Outcrop oil accumulation is a special accumulation which is located in the wing of an outcrop anticline or in a monocline in the edge of a basin and is controlled by water table.
露头油藏是一种形成于露头(削顶)背斜翼部或盆地边缘单斜上依靠潜水面控制的特殊油藏,是今后石油勘探的一个新领域。
Displacement criterion of determination of slope slip surface by FLAC~(3D);
大变形有限元确定边坡潜在滑面的位移判据
One of the most important tasks in the stability study of excavating slope is how to determinate the potential slip surface.
边坡稳定性分析的重要任务是确定边坡潜在滑面的位置及相应的安全系数,鉴于坡体位移可在现场监测中直接得到,提出边坡潜在滑面确定的位移判据,采用大变形有限元首先计算出边坡的位移场,然后在开挖面的不同高度作塑性区内的水平位移参考线,依次连接参考线上的位移突变点即得到边坡失稳的潜在滑面位置,分析滑面上的应力以及岩体抗剪强度即得到边坡的整体安全系数。
Below the water table is the zone of saturation.
潜水面以下就是饱水带。
The saturated zone is bounded above by a water table.
饱和带的上界面为潜水面。
The segment of the boundary above the water table and below the phreatic surface is called the seepage face.
水面以上和潜水面以下的一段边界叫做渗出面。
Water table is a surface on which the presure is atmospheric.
潜水面是一个其表面上压力等于大气压力的面。
The zone between the water table and the surface is called the zone of aeration.
潜水面与地表之间的地带称为饱气带。
Just above the water table, the pores are practically saturated.
稍高出潜水面的孔隙实际上是饱和的。
anti-drawning mask
带氧气呼吸器的轻型潜水面罩
a suBmarine surfaced outside the harBor.
潜水艇在港外浮到水面。
a diver issuing from the water;
从水面露出的潜水员；
The diver came up for air again.
潜水员又露出水面换气。
Hookah type diving apparatus
水面供气式潜水装具
the undersurface speed of a submarine
潜艇在水面下的速度
The submarine resurfaced.
潜艇重新浮出水面.
Why can a submarine float and sink?
为什么潜水艇既能浮在水面，又能潜入水底？
The submarine submerged, then rose to the surface.
潜水艇沉入水中，然后又升上水面。
surface-supplied compressed-air-diving
水面供给的压缩空气潜水
A diver who comes up for air
一个升到水面呼吸空气的潜水员
Divers had to rely on air pumped from the surface.
潜水员所需的空气是从水面输送的。