浅井

To solve this problem,this paper introduced a kind of double- throttling choke,and also built up its designing model.

安装一个节流油嘴存在的最大弊端是节流前后压差很大，造成节流油嘴密封部件很容易失效，这就是目前井下节流仅在浅井中得到广泛应用，而在中深井中应用受到限制的原因之一。

This revolution was primarily a dry farming operation with springs and shallow hand-dug wells supplying domestic needs.

这次革命主要是旱田耕作而以泉水和人工开挖浅井提供生活用水。

Going a little further north to Hornby Basin, it is a similar kind of situation.

进行了小北的浅井盆地，它是一个类似的情况。

For sustainable utilization of water resources, development of systems of well irrigation with well drainage and canal irrigation with ditch drainage was needed.

为水资源的可持续利用，要发展井灌井排渠灌沟排，以开发利用当地浅层地下水包括微咸水和咸水为基础，以引调可利用的地表水补源。

The function of the negative defect is to make the depth of the well shallower compared to other wells.

负缺陷的作用是让势井的深度较其它的势井更浅一些。

The period of Wolabo Formation deposition is featured by relatively broad in geomorphology, far away of the source areas, less in proximal fan deposits, and well developing in ooid limestone and stromatolitic limestone.

乌拉泊组和井井子沟组以滨浅湖粉细砂岩、泥岩夹厚层砂岩沉积为主，沉积物中有机质含量低，实体化石稀少，但是遗迹化石丰富，属富氧湖泊。

The cost per irrigated acre was $375 for the deep diesel pumps,$133 for the shallow diesel pumps and only $66 for the treadle pumps—$50 of which came from the farmers.

比较每公顷土地的灌溉成本，使用深井柴油泵大约需要926美元，浅井柴油泵约为328美元，脚踏泵则只需163美元（其中123美元来自农民）。

By the engineering checking of the selected target section we found the gold mine in both prospecting trench and randing, and gained 1.5t gold resource.

通过对优选靶区的工程查证，探槽、浅井双双见矿，共获得黄金资源量1.5吨。

Marlstone samples from the Early Cretaceous Shangkuh Formation in the Jianzishan section and geological pits in Dawu＇ergen were analyzed systematically using the polarizing microscope, fluorescence microscope and freezing-heating stage.

利用偏光显微镜、荧光显微镜和冷热台对大乌尔根尖子山剖面和地质浅井早白垩世上库力组的泥灰岩样品进行了系统研究。

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。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了