地下结果

Using Hankel digital filter algorithm and inverse spine interpolation algorithm to simulate electromagnetic fields of the horizontal layers , we contrast the calculational Cagniard apparent resistivity with its results and field experimentation.

利用汉克尔数值滤波算法和逆样条插值算法对水平层状电磁场进行正演计算，并与计算的卡尼亚视电阻率的对比和野外试验结果表明：该方法的结果在远区等价卡尼亚电阻率，在近区和过渡带则明显地改善了卡尼亚电阻率的非波场区场畸变，从而能更好地接近基底的真电阻率，更形象地反映了地下介质的垂向电性变化。

It is concluded that the numerical analysis using PSI agrees well with the experimental results.

分析结果与试验结果的对比表明，本文方法具有良好的计算精度，对地下管线的分析和设计具有参考意义。

For each strategy, a corresponding exploitation plan of groundwater was designed. Then each designed exploitation plan (except scheme 3) was put into the model for calculation and simulation. The analysis on the forecasting results every plan indicates that:(1) Shuting down the self-provided wells is the most direct and effective method, playing an important role in the land subsidence prevention.(2) The resumption of compressed soil by groundwater artificial recharge is limited. So the artificial recharge can\'t provide essential effect for the resumption of land subsidence, unless the artificial recharge is much more than the groundwater withdrawal.(3) The method of "adjusting the exploitation stratum of groundwater to the shallow" has an obvious effect on the land subsidence prevention.(4)"Sand wells" can increase the leakage recharge for confined aquifer, and thus can slow and prevent the development of the land subsidence.(5) For the groundwater exploitation in Xi\'an, emergency self-provided wells should be managed according to the well spacing of 1600m, 2000m and 1600m, respectively, in the river terrace area, alluvial-proluvial fan area and loess tableland area to exploit the first confined groundwater. Corresponding individual well yield can be set as 2500m~3/d, 1500 m~3/d and 200 m~3/d. Make emergency self-provided wells pump in the dry year and stop pumping groundwater to restore and conserve underground water sources in average years and wet years. In this way, groundwater withdrawal of 162000m~3/d can be obtained to provide for the supplement of water supply in Xi\'an. As a result, the water supply stress can be released in dry years. The groundwater depression formed in the exploiting year can resume in 3-4 years. At the same time, this exploitation manner will not lead to obvious land subsidence.

本文利用所建的模型预测了现状开采条件下未来20年的地下水位和地面沉降的变化，在此基础上，提出了防治西安市地面沉降的五个地下水开采方案，利用所建的地面沉降模型对各个设计方案其进行了模拟和预报，对预测结果的分析表明：①封停自备井是防治地面沉降最为直接和最有效的对策，对防治地面沉降起着最为积极的作用；②采用人工回灌方法使被压缩的土层得到的恢复是非常有限的，对地面沉降不能起到根治作用，只有回灌量明显大于开采量时才能有一定的效果；③&调整开采层次，在浅层取水&对防治地面沉降的效果十分明显；④布设&砂井&可以增加对承压含水层的越流补给量，从而可以有效地缓解和控制地面沉降的发生和发展；⑤对西安市的地下水开采，可在河流阶地区、冲洪积扇区和黄土塬区分别采用1600m、2000m、1600m的井间距布置应急自备井，分别采用2500m~3/d、1500 m~3/d和200 m~3/d的单井开采量，开采第一承压水，在平水年或者丰水年不开采，涵养地下水源，在枯水年启动这些应急自备井开采，在输出分析范围内共可获得162000 m~3/d(5913万m~3/a)开采量，可以有效地补充西安市的供水水源，缓解供水紧张局面，开采年开采导致的下降的水位可在停采3～4年后得到基本恢复，同时，这种开采方式不会造成大的地面沉降量。

The results show that the air temperatures in most spots of the garage are higher than 0℃, the air temperature near the entrance or the exit is lower than 0℃, but the surface temperatures of fire hydrant and water pipe for fire fighting are still higher than 0℃.

结果表明，该地下车库绝大部分区域的空气温度高于0℃，口部附近空气温度低于0℃，但消火栓及消防水管的表面温度仍高于0℃；并对地下车库不设供暖系统的节能效益进行了分析，认为在消防系统采取适当防冻措施的前提下，寒冷地区地下车库不设供暖系统是可行的，而且可以产生节能减排效益和经济效益。

The results show high levels of toxic metal elements in both groundwater and surface stream water in the Lanmuchang Hg-Tl mineralised area and low concentrations in groundwater away from the mineralised area.

结果表明，已开采的 Hg-Tl矿区地下水和地表水中均有很高的毒害金属元素，煤采区地下水中亦表现出类似的特征，而 Hg-Tl矿区外围地下水中金属元素保持在较低的水平。

There are advantages to underground life, too, and something to be said for imaging whole cities, even mankind generally, moving downward, of having the outermost mile of the Earth's crust honeycombed with passage and structure, like a gigantic ant hill.

这是一个倒装句，表示设想条件与结果关系，按这一关系来译比直译好，家似的建筑物，一座座城市都迁入地下，甚至全人类都迁入地下生活，这也会给人类带来很多好处。

There are advantages to underground , too, and something to be said for imaging whole cities, even mankind generally, moving downward, of having the outermost mile of the Earth's crust honeycombed with passage and strue-ture, like a gigantic ant hill.

这是一个倒装句，表示设想条件与结果关系，按这一关系来译比直译好，家似的建筑物，一座座城市都迁入地下，甚至全人类都迁入地下生活，这也会给人类带来很多好处。

There are advantages to underground life,too,and something to be said for imaging whole cities,even mankind generally ,moving down ward,of having the outermost mile of the Earth's crust honeycombed with passage and strue-ture,like a gigantic ant hill.

这是一个倒装句，表示设想条件与结果关系，按这一关系来译比直译好。译文：家似的建筑物，一座座城市都迁入地下，甚至全人类都迁入地下生活，这也会给人类带来很多好处。

There are advantages to underground life, too, and something to be said for imaging whole cities, even mankind generally, moving downward, of having the outermost mile of the Earth's crust honeycombed with passage and strue-ture, like a gigantic ant hill.

这是一个倒装句，表示设想条件与结果关系，按这一关系来译比直译好，家似的建筑物，一座座城市都迁入地下，甚至全人类都迁入地下生活，这也会给人类带来很多益处。

There are advantages to underground life, too, and something to be said for imaging whole cities, even mankind generally, moving downward, of having the outermost mile of the Earth's crust honeycombed with passage and strue-ture, like a gigantic ant hill.

这是一个倒装句，表示设想条件与结果关系，街舞按这一关系来译比直译好，家似的建筑物，一座座城市都迁入地下，甚至全人类都迁入地下生活，这也会给人类带来很多好处。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。