查询词典 water table

Based on the lysimeter data from the experimental station on ground water balance in Zhengzhou, the relationship between phreatic water evaporation and weather,water table depth, soil and precipitation recharge is analyzed.

根据郑州市地下水均衡场 1 991～ 1 996年地中渗透仪实测资料，分析了潜水蒸发与气象因素、埋深、土壤岩性及降雨入渗的关系。

Coal-bearing seams in Shenyu mine area inclines northwest, the bedrock thickness on the coal seams increases northwest, and there are generally red soil water-resisting layer on the bedrock. To study on the coal-water friendly geological conditions for the water-resisting layer during the coal mining process, and to determine mining zones without causing obvious water table decline are an important approach to the water-conserving mining in the fragile ecological mine area of North Shaanxi.

榆神矿区含煤地层整体向北西倾斜，煤层上覆基岩厚度向北西方向增大，基岩之上普遍分布有红土隔水层，深入研究煤炭开采过程中不对含水层造成破坏的煤水共生地质条件，确定既可采煤、又可实现水位不明显下降的区域，是陕北生态脆弱矿区保水开采的重要途径。

Starting with the elevation of underground water resources and a safe level of mining through variable system theory, this paper analyzes the conditions of underground water resources based on the well-studied determination method of determining the two hydrographical coefficients: rainfall infiltration replenishment rate and irrigation replenishment rate. Then considering irrigation, rainfall, drainage and other related factors, a mathematical model is set up for the calculation of underground water storage,exploitation on water regulation. After analyzing the adaptability of molepipe drainage, an underground water table regulation is given out.

论文从灌区的地下水资源及其可开采量评价分析方面入手，在对两个主要的水文地质参数即降雨入渗补给系数、灌溉入渗补给系数确定方法研究的基础上，对灌区的地下水资源状况进行分析，依据灌区的灌溉、降雨、排水条件及各种现状因素，建立了地下水资源量计算的数学模型，西安理工大学工程硕士专业学位论文计算得到青铜峡灌区地下水的最大补给量和可开采量；另外对在开发利用地下水资源过程中的地下水位的调控进行了初步的探讨，在银北灌区开展对暗管排水调控地下水位的试验研究。

Fields become less resistant to water stress and the water table is no longer resupplied by water filtering through, worsening the effects of droughts.

农田的抗水分胁迫能力下降，而且地下水位得不到渗透水的补充，加重了干旱的影响。

Water table of each bore hole was also observed during the field investigation period and the respective values are mentioned in the annexed tables.Overall average depth of water table may vary within 5 feet to 6 feet below the average ground level because of the seasonal and tidal effect.

地下水位每孔也有人在现场调查期间和各自的价值观提到，在所附tables.overall平均深度，地下水位可能会有所变动5英尺6英尺以下，平均地面由于季节和潮汐效果。

Finally, aimed at the steady water table in massive deserts of middle Tarim basin, the feasibility of only identifying the depth of water table in the area with low-velocity zone was discussed, indicating that it can largely decrease the density of investigation points.

最后，针对塔中大沙漠区潜水面稳定这一特点，讨论了野外低速带调查仅确定潜水面的埋深的可行性，这样可以大大降低调查点密度。

This study choose Changle Gaoya reservoir irrigation areas as the study sites, through the installation of different ultrasonic equipment on open channel of non-uniform flow to study the flow gauging of non-uniform flow in open channel:(1)5 tracks ultrasonic open channel flow meter used to real-time monitoring the flow of velocity ,water depth and discharge;(2)Ultrasonic liquid level gauge used to real-time measure the upper level and tail level of the two sections ,then the computer calculated average water level, gradient of water table and discharge;(3)Change the open channel water conveyance into pipeline full flow water conveyance, installed the ultrasonic liquid level gauge and pipe flow gauge on the inflow point and surface of pipe, water level and discharge would detect in real time.

本研究以山东省昌乐县高崖水库灌区为研究地点，通过安装在灌溉明渠上的不同超声波设备对明渠非均匀流的测流进行了研究：(1)用五声波超声波明渠流量计对测流渠段的流速、水深及流量进行了实时监测；(2)用超声波液位计将测流渠段的上下游两断面水位实时测出，再用计算机分时段算出平均水位、水面坡降及流量；(3)将测流渠段明渠输水改造成管道满流输水，分别在管道进口前及管管上安装超声波液位计和管道式流量计，将水位和流量实时测出。

Many water basins are managed without any information on precipitation, run-off, amount of water at the ground water table.

许多水流域的管理信息没有任何降水，径流，在地下水位水量。

The results showed the modelling es-tablished and its condition for determination and solving could be used as predic-tion and simulation of the flucturation of soil water in the field under subdrainagecondition,the soil water status in the winter wheat and barley field could be ob-tained at different falling rates of underground water table under any meterologi-cal boundary condition.

结果表明，所建立的模型和定解条件能较好地拟合排降条件下田间土壤水分的变化，可以求获一定外界气象条件下，不同地下水降落速度时，麦田水分变化状况。

There are thinks the double features of saline and alkaline for the formation and evolutionprocess of the salinization soils in this region,the generation intensity and scale are related withgeomorphological types,shallow water geochemical types,shallow water table and soil structureetc.,presents the quantity relationship between the salinization degree of the soils,shallow watertable and mineralization,expounds the four stage and seasonal succession features of slattransference and inversion,discuss the interaction between ions in shallow water and soils and thethe regularity of the salt transference and accumulation under freeze-thaw action.

本文在野外调查、监测及实验研究的基础上提出松嫩平原盐渍土的形成过程存在盐化与碱化双重作用，其发生强度和规模与地貌、潜水类型、径流条件、潜水水位、土壤结构有关，提取出潜水埋深、矿化度与土壤盐渍化程度关系的定量指标，以及土壤盐分迁移转化季节性变化的四个阶段及其特征。同时重点研究了潜水与土壤之间元素交互作用及冻融作用下盐分迁移和聚积规律，为土壤次生盐渍化的防治提供了理伦依据和技术支撑。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。