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地质条件
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  geological conditions
    Research on Metallogenetic Geological Conditions and the Predicting Models of Compound Information in East Tianshan of Xinjiang
    新疆东天山成矿地质条件与综合信息预测模型研究
短句来源
    ESSENTIAL CHARACTERISTICS OF GEOLOGICAL CONDITIONS FOR GEOTH ERMAL RESOURCE IN HEBEI AND ITS DEVELOPMENT AND UTILIZATION
    河北省地热地质条件的基本特征与地热资源开发利用问题
短句来源
    Study of the Geological Conditions of the Underground Hot-water Resources of Heze Salient
    菏泽凸起地下热水资源成矿地质条件研究
短句来源
    NEW APPLICATION OF SEISMIC EXPLORATION IN DIFFERENT GEOLOGICAL CONDITIONS
    地震勘探在不同地质条件下的新应用
短句来源
    The results show that the geological conditions of the reservoir construction are favourable, and the engineer benefit is remarkable, which provides a typical example for comprehensive effective exploitation and utilization of water resources in karst area.
    结果表明,马官地下水库成库地质条件较好,按水资源工程评价指标评价,该库的土地淹没和人口迁移、环保投资几乎为零,工程效益十分显著,是贵州岩溶区水资源综合、有效开发利用的典型范例。
短句来源
更多       
  geological condition
    Geological Condition Analysis of Geotherm in Yuncheng County, Shandong Province
    山东省郓城县城区地热地质条件分析
短句来源
    FIELD SURVEY ARRANGEMENTS FOR FREQUENCY ELECTROMAGNETIC SOUNDING UNDER COMPLEX GEOLOGICAL CONDITION
    复杂地质条件下的频率电磁测深
短句来源
    SH-WAVE MODELING OF INFLUENCE OF LOCAl GEOLOGICAL CONDITION ON STRONG GROUND MOTION
    局部地质条件对强地面运动影响的剪切波模拟
短句来源
    Application of Underground Radio Wave Perradiation Technique in Complex Geological Condition
    复杂地质条件下无线电波透视技术的应用
短句来源
    This area develops intensive structure activities, so has good geological condition of mineralization.
    该区地质构造活动强烈,具有良好的成矿地质条件
短句来源
更多       
  geologic condition
    Discussion on seismic information character and geologic condition of gas accumulation in Sanhu region.
    三湖地区天然气藏的地震信息特征与地质条件的研讨
短句来源
    Seismic acquisition QC under complicated geologic condition
    复杂地质条件下的地震采集质量监控
短句来源
    Method for Wide Azimuth 3 Dimensional Seismic Exploration under Complex Geologic Condition and Its Application
    复杂地质条件下的宽方位角三维地震勘探方法研究及应用
短句来源
    Due to the influence of the multistaged structural movements, variable geologic condition, the older strata override on the newer strata, difference between velocity of longitudinal and horizontal is very great , longitudinal velocity even reverse to 2000m/s.
    该区由于受各期构造活动影响,地质条件非常复杂,破碎的老地层推覆在新地层之上,速度纵横向变化大,纵向速度反转达2000m/s以上,上覆老地层倾角大,纵横向变化剧烈。
短句来源
    In the paper, we comprehensively study the water table and the superficial geologic condition of the working area according to the 3-D seismic prospecting example in BW area. A practicalworking method to study the superfcial geologic condition is put forward, which combines the micrologwith the wesathering refraction shooting and combines the uphole τ value with the microlog. How tochoose the reasonable excitation condition and the excitation factor in lithologic exploration in the SNarea is the approached.
    本文结合BW地区三维地震勘探的实例,对工区潜水面和表层地质条件进行综合研究,提出了用微测井结合小折射、井口τ值结合微测井等研究表层地质条件的实际工作方法,探讨了松南地区如何选择合理的激发条件以及岩性勘探中如何选择激发因素。
短句来源
更多       
  “地质条件”译为未确定词的双语例句
    FACTERS OF ENGINEERING GEOLOGY FOR SEEPAGE OF SALT POOLS IN CHAERHAN SALT LAKE
    察尔汗盐湖盐田渗漏及其工程地质条件分析
短句来源
    A Preliminary Discussion Analysis of Geotherm-Geological Conditions in the Eastern Plain of Handan City
    邯郸市东部平原区地热地质条件初析
短句来源
    A grouped calibration method of synthetic seismogram with complex geology: a case study of Gunan-209 area,Shengli oilfield
    复杂地质条件合成地震记录的分类标定方法——以孤南209井区为例
短句来源
    The propagation path of refraction wave in the presence of one or more vertical velocity interfaces is discussed.
    在一个或多个直立速度界面的地质条件下,讨论了折射波的传播路径,推导出折射波的时距方程,给出时距曲线。
短句来源
    It is triportant for improving the geologic-economical of geophysical exploration that we systematically establish the geologic-geophysical models about petroleum, metalore, coalfield, engineering geology, hydrology etc.
    广泛收集国内外各种地质条件下的地球物理勘探资料,系统分类地建立有关石油、金属矿、煤田、工程、水文等地质—地球物理模型库,对提高地球物理勘探的地质—经济效果具有重要作用。
短句来源
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  geological conditions
Geological conditions of the dam canyon are usually very complicated; however, in the literature, the damfoundation interaction analysis is often carried out based on the premise of a homogeneous unbounded foundation.
      
The solutions obtained are applied to new problems associated with environmental protection and the nonpolluting operation of water intakes under complex geological conditions.
      
The solutions obtained are applied to new problems associated with the operation of a well in soil strata under complex geological conditions.
      
The simplicity of the asymptotic solution obtained makes it possible to vary the problem parameters and determine the porosity, pressure, and velocities for particular geological conditions by means of simple calculations.
      
The triggering threshold of this mechanism depends on mining and geological conditions and the concentration and structure of ores.
      
更多          
  geological condition
The fold and faultage influenced on the stability of slope and offered the geological condition to landslides and rockfalls.
      
Geological condition and rainfall are two most principal conditions inducing landslides in the Chongqing region.
      
At first, semi-quantitative assessment and grading for the geological condition of a certain area or slope can be carried out with the multi-factor interactive matrix.
      
It is considered that geothermal exploitation does not induce earthquakes in and around Xi'an because of its specially geological condition.
      
The objective of engineering geological mapping is to present the geological condition for solving some problems in engineering construction.
      
更多          
  geologic condition
The weathering effect as well as vibration induced by heavy equipment may alter the favourable geologic condition to a hazardous one at any time.
      


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黄河流域的自然地理条件,使得进入下游的泥沙量特别高,河床不断堆积抬高,而且坡陡流急,河床变形迅速.洪峰的猛涨猛落,洪汛期和枯水期流量的相差悬殊,以及洪峰与沙峰的不相应性,也使下游河床时时刻刻都在进行调整和改变.这一些流域条件,决定了黄河下游的游盪性河型.只有到了高村以下,由于两岸的地质条件和南北大堤限制了河道的横向发展,河流才逐步向弯曲的外形过渡.黄河下游虽然是一条堆积性的河流,但是在局部地区,在个别时段中,也可能出现相当普遍的冲刷.例如1958年下游的洪水超过了有水文记载以来的记录,在特大洪峰中,三门峡与秦厂之间的区间来水占四分之三左右,这一部分来水含沙量比较低,对干流有稀释作用.经过一个汛期,只花园口三十五公里的河段内,就从主槽中冲去了泥沙2,700万方,从京广铁桥到夹河滩长约100公里的河段内,1958年汛后的谿线比1953年平均还要降低1.2米,冲刷的范围估计已发展到高村以下.在河床普遍刷深的过程中,局部地区冲深达五、六米甚至十几米的,更是屡见不鲜.水文资料的分析结果指出:在上游来沙量偏大,河床普遍淤高的情况下,河势的变化要强烈得多,而在河床普遍刷深的同时,河流外形却变得更为规则,主槽的摆...

黄河流域的自然地理条件,使得进入下游的泥沙量特别高,河床不断堆积抬高,而且坡陡流急,河床变形迅速.洪峰的猛涨猛落,洪汛期和枯水期流量的相差悬殊,以及洪峰与沙峰的不相应性,也使下游河床时时刻刻都在进行调整和改变.这一些流域条件,决定了黄河下游的游盪性河型.只有到了高村以下,由于两岸的地质条件和南北大堤限制了河道的横向发展,河流才逐步向弯曲的外形过渡.黄河下游虽然是一条堆积性的河流,但是在局部地区,在个别时段中,也可能出现相当普遍的冲刷.例如1958年下游的洪水超过了有水文记载以来的记录,在特大洪峰中,三门峡与秦厂之间的区间来水占四分之三左右,这一部分来水含沙量比较低,对干流有稀释作用.经过一个汛期,只花园口三十五公里的河段内,就从主槽中冲去了泥沙2,700万方,从京广铁桥到夹河滩长约100公里的河段内,1958年汛后的谿线比1953年平均还要降低1.2米,冲刷的范围估计已发展到高村以下.在河床普遍刷深的过程中,局部地区冲深达五、六米甚至十几米的,更是屡见不鲜.水文资料的分析结果指出:在上游来沙量偏大,河床普遍淤高的情况下,河势的变化要强烈得多,而在河床普遍刷深的同时,河流外形却变得更为规则,主槽的摆动范围也有所压缩.模型试验的结果,初步指出河床在横向的变化与下泄流量的大小有很大的关系.如果下泄的清水比下游河槽的平滩流量小得多,河床基本上以下切为主,两岸出现台地.在下切的同时,水流有向弯曲的外形发展的趋势,随着弯顶的下移,河槽逐渐展宽.如果下泄的水满槽漫流,一方面由于流量大,水流冲刷力强,河床下切得更快,而另一方面,水流漫滩以后,对滩岸的破坏力加大,容易冲出串沟,导致主槽较大的摆动,河床开始恢复游盪的特性.这时的游盪强度虽然比以前要弱得多,但是因为下泄的水含沙量不足,滩岸淘刷以后,不能在旁的地方落淤还滩,河身因此迅速展宽.更往下游去,来自上游的清水已经自河床中取得足够的泥沙的补给,含沙量恢复饱和,这时河床不再发生冲刷,横向的变化也和过去没有太大的不同.在壅水段中,泥沙大量停积,河床继续保持游盪的特性,而且河身格外宽浅,水流外形显得更为散乱.由于泥沙在水库进口段的淤积,并使回水迅速向上游发展.河床在纵向上的冲淤幅度可以通过河床变形计算加以预估.按照黄委会所提出的六枢纽方案,将来在各级枢纽之间,都存在着自由段、过渡段和壅水段.自由段的冲刷是由上而下逐步发展的,在同一个地区,冲刷的速率因时递减.泥沙不再运动、全线达到平衡所需要的时间历时很久.河床达到平衡以后,自由段的最大冲刷深度在桃花峪下游为10米左右,在其他各个梯级的下游则达到20—30米.这样大的普遍冲刷,再加上坝址附近的局部冲刷,会在枢纽工程的修建中引起一定的困难.黄河下游将来的泥沙主要来自河床的冲刷,非造床质所占的百分比较小,在达到平衡以前,全部沙量约在70亿公方左右,这些泥沙一部分淤在壅水段,一部分引入灌溉渠道.壅水段回水的向上游发展,在河南境内的几个梯级比山东更为显著.下游河道的整治可分近期及远期两个时期,从三门峡水库开始拦洪到桃花峪水库建成以前属于近期,为期约4—5年,桃花峪水库及下游各级枢纽建成以后属于远期.近期的河道整治以防洪为主.三门峡水库建成以后,三秦区间还可以发生相当大的洪水.从目前情况看,三秦间发生千年一遇洪水时还可以采取措施通过河道排泄入海不开放滞洪区分洪滞洪.将来下游主槽发生摆动的可能性是存在的,特别是在伊洛沁河口以下由于区间洪水尚未得到控制,水流有漫摊的机会,这就更有可能引起河槽的摆动和滩地的冲失.滩地的坍塌和河槽的展宽会使远期的整治工程失去前进的阵地,而且由此引起的河势变化可能会在束窄段的上下游造成新险.因此,近期的整治工程应以束窄游盪区、固定河势、保护滩地为主要内容.今冬明春应继续修筑生产堤,保护滩区农业生产,并束水固槽.黄河上现有节点应加改善,自两岸加固,使其成为真正固定河势的控制段,现有老滩需加维护.滩面的岐流串沟应加堵塞,并在滩地大量造林.关于植树在河道整治中的应用,应尽量利用永定河上的成功经验.整治的重点应放在花园口至高村河段.远期的河道整治应以促使河道向有利方向发展,最后达到全线通航为主.自由段的整治和前期工程并无太大的出入.在枢纽修建的同时,应把壅水区的外形做成枣核形,使泥沙能在库区内均匀落淤,回水不至过份向上游发展.泄洪闸的闸坎应尽量放低,闸门不宜过小,以便在洪汛期中提闸降低水位,清洗库区泥沙.在河南境内的河道坡降达到山东段现有坡降(万分之1.2)以后,就可以进一步束窄河身,考虑全线通航.在治导线的规划和航运断面的设计上,应以山东下游现有的典型弯道作为蓝本,弯道的浅滩段并自两面束窄,使其具有和深潭同样的航深.初步设计的结果,指出将来黄河下游在河道初束窄时,可以通行100—500吨的船只.随着河道的继续下切和坡降的继续变平,航运条件会进一步有所改善.

Diversion works with screened intake built on steep mountainous streams abundant in gravel-pebble bed load have been proved to be one of the successful types of headworks in the Xinjiang Uygur Autonomous Region. As water carrying gravels and pebbles flows over the screened intake on the top of the diversion dam, it shows good efficiency in diverting water and sluicing sediment. There have been about 50 headworks of this type built in Xinjiang.This type of diversion works consists of the dam with screened intake,...

Diversion works with screened intake built on steep mountainous streams abundant in gravel-pebble bed load have been proved to be one of the successful types of headworks in the Xinjiang Uygur Autonomous Region. As water carrying gravels and pebbles flows over the screened intake on the top of the diversion dam, it shows good efficiency in diverting water and sluicing sediment. There have been about 50 headworks of this type built in Xinjiang.This type of diversion works consists of the dam with screened intake, the sediment flushing sluice, the spillway dam and the guide levees. The layout of the works have to be decided by the hydrological and geological conditions of the river. Generally, when the sill of the flushing sluice is lower than the crest of the screened intake, it is easy to maintain the main channel of the river in front of the headwork. As soon as the diversion works being put into operation, the relation between the sediment content and the discharge will be readjusted, i.e.,a large amount of sediment should be flushed by a smaller amount of water. In order to prevent sediment deposited in the downstream reach of the headwork, it is necessary to make the downstream channel as narrow as possible by extending the guide levees and other measures. In order to prevent serious scouring downstream which may endanger the security of the project, the narrowing of the channel and the raising of the crest of the screened intake should be considered comprehensively. Generally, the sediment flushing sluice should be located near the screened intake. If diversion is tak- ' en from both sides of the siream, the flushing sluice should be located in the middle of the river. The flushing sluice can be opened continuously or intermittantly in the flood period, but it should be closed in the low water season for backing up water for diversion. The contraction of the reach upstream by guide levees will constitute a favorable bend or make the flow more smooth and steady, so that the flow pattern in front of the intake can be kept in good condition for diversion under wide range of discharges, Experience shows that it is better to use apron made of series of logs and anti-scour diaphragm instead of plunge pool in the connection of the discharging structures and the natural river bed downstream in order to keep the structure from underwashing.

在坡降陡急和河床为卵石、漂、砾的山溪河道上,底栅式引水枢纽在新疆已被证明为十分有效的引水形式之一.水流挟带的大颗粒泥沙越过枢纽的栏栅顶面而送到下游,使这种引水形式的排沙引水效果良好.新疆已建成这种形式的渠首近五十座. 引水枢纽由栏栅堰、冲沙闸、溢洪堰和导流堤组成.工程的布置方式取决于河道的水文泥沙条件和地质条件.在一般情况下,当冲沙闸底低于栏栅堰底时,枢纽的上游河道容易保持主槽.渠首建成后,河道中的含沙量和流量的关系重新调整,即以少量的水冲走大量的泥沙.为了防止枢纽下游淤积,必须对下游河段采取缩窄并延长导流堤等措施.但缩窄下游河床和抬高栏栅堰顶应统一考虑, 以免引起剧烈冲刷和危及建筑物安全.布置冲沙闸一般应靠近栏栅堰.当枢纽采取两岸取水形式时,冲沙闸应布置在河床中心.冲沙闸门在洪水期或则长期开启,或则间隙开启,在枯水期一般为闭闸壅水运用.上游导流堤有助于人为地造成有利的弯道,或者能使河床水流保持平稳, 以便使上游河床在各级流量下都能具有较好的水流条件.通过实践证明,衔接闸,堰和天然河道的消能防冲设施,以裙板和防冲墙效果较好.

In this paper,the flow-net is stressed as a measure in design to predict the output of water supply adopting infiltration wells on the riverbed as resource.It is based on the principle of flow net with the con sideration of local hydrogeological conditions infiltration boundary conditions.From the instance of drawing flow nets and calculation,it has been proved that this method is easy to master,intuitively and vividly reproducable the actual image of infiltration flow arround the wells.Further more.it also...

In this paper,the flow-net is stressed as a measure in design to predict the output of water supply adopting infiltration wells on the riverbed as resource.It is based on the principle of flow net with the con sideration of local hydrogeological conditions infiltration boundary conditions.From the instance of drawing flow nets and calculation,it has been proved that this method is easy to master,intuitively and vividly reproducable the actual image of infiltration flow arround the wells.Further more.it also can be applied satisfactorily for those infiltration flow under complicate boundary circumstances.

本文着重研究在采用河床渗井的给水工程设计中,如何根据流网原理,结合具体的水文地质条件与渗流边界条件,应用流网法,对井出水量进行预测。通过实例流网绘制与应用流网计算结果,证明此法容易掌握、形象直观、可很好再现井周实际渗流图景,而且能获得边界条件比较复杂的渗流的解的满意结果。

 
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