查询词典 aquifer

It may look barren, but underneath there's a huge aquifer - a natural reservoir of water.

但是，一旦巴勒斯坦在此建国，一切都将改变。

An unconfined aquifer has a water table at its top and water in direct contact with the soil atmosphere.

非承压含水层在它的上面有一个潜水面且水与土壤大气直接相连。

The procedures of determining confined aquifer parameters by BP neural network were introduced...

为说明BP神经网络求含水层参数的原理，本文以文献数据给出了基于非稳定流抽水试验的BP神经网络求承压含水层参数的过程。

The 3 to 4-m thick sands of the Ryugasaki Fm constitute the upper aquifer in the area.

1.3至4米厚的砂的龙崎调频构成上含水层在该地区。

D seismic and logging data of the first mining area in the Xinyi coal mine are dealt with impedance inversion to predict aquosity and watertightness of the top Ordovician limestone and the possible water-rich areas in the aquifer are determined by the impedance values.

本文根据新驿煤矿首采区的三维地震和测井资料，利用波阻抗反演技术预测该区奥陶系灰岩顶部的含隔水性，并依据波阻抗值的大小圈定含水层中的可能富水区。

Such material can confine water in an artesian aquifer.

这样的介质能把水控制在承压含水层中。

The theoretical model to reveal the mechanism of delayed gravity response is established on account of the effects of detention of water by capillarity and boundary friction in the unsaturated zone and elasticity of aquifer skeleton with falling of ground water level.

为揭示潜水延迟给水的机理，本文建立了考虑毛管滞水和弹性储量影响的潜水三维非稳定井流理论模型，并经实例验证。

But when we mine commensuration groundwater, the falling velocity water level and range of the deep hydrous stratum are bigger than the shallow hydrous stratum. And the quantity of subsidence is not obvious different. 2. Analyzing the relation between the stratum of groundwater and land subsidence, with the depth of aquifer bed increased, the proportion that the released water because of compressibility of strata possessed become bigger, and it cause land subsidence more serious. 3. The physical and mechanical properties and the consolidation state of stratum do not become better with the depth increased.

依据： ①一般情况下，随深度增加，地层的压缩性会渐下；但是开采同量的地下水，其水位下降的速率及幅度深部含水组比浅部含水组要大的多，两者引起的沉降量不会有明显的差别；②从地下水开采资源组成与地面沉降关系分析，含水层深度越深，其中的压密释水量所占的比例也越大，造成的地面沉降也越严重；③地层的物理力学性质及固结状态，随深度的增加，也不完全是越来越好。

According to continuity principle of flow, law of conservation of mass and Darcy's law, the dual medium mathematical model of unsteady flow in fissurekarst artesian aquifer is established, and the finite volume method is adopted to get the solution, taking Longgang district in Shenzhen as an example to verify this model.

根据水流连续性原理、质量守衡和达西定律，建立了裂隙-岩溶承压含水层非稳定流双重介质数学模型，采用有限体积法对其求解，并以深圳龙岗区为例对模型进行验证。

In order to solve the problem of pattern recognition ofsimilarity of curves,a k ind of pattern recognition technique based on genetic algorithms is put forward in this article,namely,progressive hierarchy decomposite technique,and this tech nique is applied to determine the parameters of aquifer using type curve method.

姜海霞 ，王锦国，王建为了解决曲线相似性的模式识别问题，提出了一种基于遗传学习算法的模式识别方法，即层次逐级分解法。并应用该方法解决了配线法确定含水层参数问题。

Objective: To study the effect of polycythemia on blood oxygen saturation.

裴蕾目的：观察RBC剧增而引起的高粘血症对血氧饱和度的影响。

Based on SIMPLER algorithm in the curvilinear body-fitted coordinates, the calculations were performed for Pr=0.7, Re=10~1000 on non-orthogonal non-staggered grids which are generated by elliptic equation systems.

采用曲线坐标系下压力与速度耦合的SIMPLER算法，数值研究了周期性渐扩渐缩波纹通道内脉动流动与换热情况，流动Re数的范围为10~1000，Pr数为0.7。