查询词典 a stratum

In this paper we combining connecting tunnel project of Subway Line 4 at Xidan-lingjing bystreet in Beijing. To aim at the difficulties of building large-span connecting tunnels in the fine sand layer, through roads and underground pipelines, construction nearby buildings and other project difficulties. Using theoretical analysis, numerical simulation, field tests and other research methods to comprehensive and systemic research the stratum deformation mechanism and process control techniques of shallow excavation method, and a series of results were obtained. Firstly, use the stochastic media theory to analyze the stratum deformation mechanism, concretely analyze the analytic equation of surface horizontal displacement and deformation which were caused by the excavation of single-hole and double-hole tunnel, and further discussion on ground settlement, vertical deformation, surface horizontal displacement and horizontal deformation. Analyzing the main influence factors of surface displacement, and combined with practical work to proof the theory which was applied to shallow buried single-hole tunnel in fine sand layer was scientific.

本文结合北京地铁四号线西单～灵境胡同渡线隧道工程，针对在粉细砂地层中修建大跨渡线隧道，下穿道路和地下管线，临近建筑物施工等工程难点，利用理论分析、数值模拟、和现场监测等多种研究手段，对浅埋暗挖隧道地层变位机理及控制技术，深入地进行全面和系统的研究，并取得以下成果：(1)引入随机介质理论，对地层变位机理进行了分析，具体分析了单、双孔隧道开挖引起的地表位移及变形的解析方程，并深入探讨了地表沉降、垂直变形、地表水平位移和水平变形的特点，同时分析了影响地表位移的主要因素，并结合工程实例，佐证该理论应用于粉细砂地层浅埋暗挖单孔地铁隧道的科学性。

However, Cuvier argues that the appearance and disappearance of new species from stratum to stratum corresponded in time to a major environmental change, namely a catastrophe such as a flood or an earthquake, that had destroyed many of the species living there at that time.

但是cuvier辩称，新种的出现和消失在层层相当于一个重大环境变化时，即灾难发生地震或洪水等，已经摧毁许多当时生活在那里的物种。

Furthermore, how to apply the model efficiently in practice is deeply discussed. As the variance produced by the forecasting model as concerned, the real-time revised method of hydrological forecasting is highlighted. Next arranged, the multi-stratum recursive prediction model is put forward to forecast the error series that is a dynamic system. Later, an error selfregressive multi-stratum recursive prediction model is set up as well as a current algorithm offered. Finally, the difference collated model and the gloss control method, which are devoted to updating the mid-long term hydrological forecasting during the meditate period, are put forward.

在综合评述中长期水文预报现有方法和模型的基础上，采用时间序列分析方法，建立中长期水文预报的时间序列组合模型，并对模型如何在实际中有效应用作了较为深入的探讨；针对模型预报所产生的误差，又重点研究了水文预报实时修正方法：提出了采用多层递阶预报方法对误差序列这一动态系统进行预报，建立了误差自回归多层递阶预报模型，并提出了较为通用的解算方法；给出了水文中长期预报中期修正的残差相关模型和总量控制方法。

In order to overcome the disadvantage of volume effect and improve prospecting precision of MT, the paper puts forward a multi-channel telemetry method of stratum resistivity for linearity processing exploring depth and electromagnetic frequency in the local area, which creates a crresponding relationship between stratum resistivity and sounding line, and a multi-channel observation system is designed accordingly to explore the resistivity of underground ledge.

为克服大地电磁勘探中"体积效应"的缺点，提高探测精度，提出多道遥测地层电阻率法，该方法是在一个局部区域内，将勘探深度和电磁波周期进行线性化处理，使得地层电阻率和测深曲线建立对应关系，并据此设计了一个多道探测地下矿层电阻率的观测系统。

The earth is not a mere fragment of dead history, stratum upon stratum like the leaves of a book, to be studied by geologists and antiquaries chiefly, but living poetry like the leaves of a tree,which precede flowers and fruit —— not a fossil earth, but a living earth; compared with whose great central life all animal and vegetable life is merely parasitic.

大地不只是已死的历史的一个片段，地层架地层像一本书的层层叠叠的书页，主要让地质学家和考古学家去研究；大地是活生生的诗歌，像一株树的树叶，它先于花朵，先于果实；——不是一个化石的地球，而是一个活生生的地球；和它一比较，一切动植物的生命都不过寄生在这个伟大的中心生命上。

RESULTS: There was a widespread expression of GluR1 in the hippocampus of adult rats, especially in stratum pyramidal cell, stratum orient and stratum lucidum of CA3 region, and interneuron of dentate gyrus.

结果： GluR1在正常大鼠海马有广泛表达，在CA3区的起层、锥体细胞层和透明层及齿状回门区内的中间神经元表达最强。

RESULTS摘要: There was a widespread expression of GluR1 in the hippocampus of adult rats, especially in stratum pyramidal cell, stratum orient and stratum lucidum of CA3 region, and interneuron of dentate gyrus.

结果摘要： GluR1在正常大鼠海马有广泛表达，在CA3区的起层、锥体细胞层和透明层及齿状回门区内的中间神经元表达最强。

Besides, a method has been creatively proposed to process stratum rupture using cross-ring. Bridge-edge and stratum area decompounding method has been used to solve reverse fault issue, and the applying problem basing on state machine model has been resolved by using a function class mechanism. It supplies a new idea and new method for reservoir stochastic modeling. At the same time, the geology stochastic modeling theory system has been enriched and improved. It has important academic and practical meaning in deepening reservoir development geology stochastic modeling theory and increasing remaining oil research extent.

该软件创造性地提出用相交环线概念来处理地层撕裂；用桥边及地层面区域子分的概念来处理带有逆断层的地层撕裂；用功能类机制及相应的消息分发模型，来解决基于状态机模型的应用问题等理论，为储层随机建模研究提供了新思路和新方法，进一步丰富、完善了储层随机建模的理论体系，对深化油田开发地质随机建模理论及加大剩余油挖潜力度具有重要的理论意义和现实意义。

But Taoism had another side—beyond all classes, its adherents could make up of a single stratum,even a new stratum—"professional Taoists" had emerged with the Taoist Temples system maturating since the late Northern and Southern Dynasties.

其在仪式行为上较重献祭、祈祷、符水治病，具有形式粗朴、目的较功利现实的特点；在组织行为上他们积极参与道团，缴纳命信，结成的道教组织具有较强的互助性。

Said shaft with enclosed two ends passes from marine extraction platform through submarine water-bearing stratum into submarine oil bed and has water pumping and injecting openings corresponding to the water-bearing stratum and oil bed respectively. A sand control filter is mounted to water-pumping opening. A packer is provided in the shaft between water and oil beds.

井筒从海上采油平台穿过海底水层后伸入海底油层中，其井口和井底均为封闭，对应于水层和油层处的筒壁上分别开有抽水孔和注水孔，抽水孔内侧的井筒中装有防砂过滤器，水层与油层之间的井筒中装有封隔器。

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