Hydraulic fracturing, or fracking, involves pumping a mixture of water, sand and chemicals at high pressure into rocks deep underground to open up tiny fissures, allowing oil and gas to flow more freely to the wellhead. 水力压裂法的原理是通过高压将掺入沙和化学物质的水注入地底深处的岩层,打开细小的裂缝,使石油和天然气能够更自由地流到钻井口。
The dentist can also paint our biting surfaces with a plastic that seals our fissures against bacteria. 牙科医生也能在我们的咬合面上涂上一层塑料,封住我们的裂缝,防止细菌侵入。
As the dome grows, it develops deep fissures ( cracks); 随着这个圆顶的增长,它开始出现初始的裂缝(裂纹);
Applications and Researches of Refraction Seismic Tomography Method in Xi'an Ground Fissures 折射波层析成像在西安地裂缝勘探中的应用研究
There are two sets of vertical shearing planes and one set of relaxed fissures dipping towards the river course in the rock mass at the Xiaowan dam site. 小湾岩体存在两组垂直结构面和一组倾向河道的卸荷裂隙。
This is a normal variant, and corresponds to the slight asymmetry of the Sylvian fissures. 这是一种正常变异,相应两侧大脑外侧裂也有轻微不对称。
A research on the relation between mining caused coal seam roof fissures and mine gas distribution 煤层顶板采动裂隙与瓦斯分布关系研究
This paper analyses and summarizes the types and development characteristics of ground fissures in Beijing area, and puts forward some prevention measures. 本文论述了北京地区地裂缝类型和发育特征,提出了地裂缝的防治措施。
Experimental study on effect of active ground fissures on stress and displacement change laws of strata near metro tunnels 地裂缝活动对地铁区间隧道地层应力与位移影响的试验研究
Characteristics and formation mechanism of fissures in Ordovician strata of No.4 block, the Tahe Oilfield 塔河油田四区奥陶系裂缝特征及其成因机制研究
Numerical Simulation of Interaction between Stratum and Subway Tunnel under the Environment of Active Ground Fissures 地裂缝活动环境下的土层&地铁隧道相互作用数值模拟
Finally, three dimensional land subsidence model should be develope in which horizontal displacement and ground fissures are considered. 最后,建立三维沉降模型,考虑水平位移和地裂缝问题。
Nodular thickening of interlobular septa and fissures can be seen in this disease and lymphangitic spread of carcinoma. 结节样的小叶间隔和叶间裂增厚也可见于癌性淋巴管病。
The Development Condition and Section Structure Characteristic of Xi'an Ground Fissures 西安地裂缝发育现状及剖面结构特征
Finite Element Calculation and Analysis of Xi'an Metro's Interval Structure Crossing Ground Fissures through a Small Angle 西安地铁区间结构小角度穿越地裂缝有限元计算与分析
Application of Duplex Pipe Grouting for a Subway Tunnel to Traverse Ground Fissures 二重管水平注浆加固技术在地铁隧道穿越地裂缝处治中的应用
The approximate determination methods for fissure depth, surface of sub-layers and phreatic line of seepage in fissures are given. 给出了裂隙深度、各亚层界面、各层强度指标以及裂隙渗流浸润线的近似确定方法。
Design and Implement of Xi'an Ground Fissures and Land Subsidence Information Management System 西安地裂缝地面沉降信息管理系统设计与实现
Instead, they have exposed fissures between Pyongyang's would-be foes. 而现在,军演反而暴露了平壤方面潜在对手之间的分歧。
Two large fissures just opened up near the base. 两个巨大的裂口在基地附近打开。
Has some swelling and fissures on her fingers andnuckles. 在手指和指关节外有些肿胀和裂口。
The French have held two colloquia and an international symposium on rock fissures. 法国已经开了两次岩石裂缝方面的报告会和一个国际会议。
Several fissures occurring in local area of the chambers had been treated after analysing the observation results and genesis of the fissures. 洞室局部曾出现过几条裂缝,通过对裂缝观测成果及成因分析,已进行了处理。
Metro tunnel hazards induced by active ground fissures in Xi 'an and relevant control measures 西安地裂缝对地铁隧道的危害及防治措施研究
The thin mountain intersected by faults and other structural fissures result in low intactness of rock mass. 因岛礁山体略显单薄,受数条断层及其他构造裂隙的影响,整体完整性较差。
The Assessment of Risk of the Ground Fissures Based on GIS in Weihe River Basin 基于GIS的渭河盆地地裂缝灾害危险性评价研究
Volcanic fissures cover the whole area. 火山缝隙覆盖了整个地区。
This concentration of stress further accelerates cartilage wear with thinning of outer layers and propagation of cracks and fissures in the deeper layers. 集中的应有尽有力进一步加速外民支软骨磨损及变薄,也加速深层碎裂和裂隙的扩布。
Ore bodies are jointly controlled by both strata and structures, and usually they are distributed in folded layers'fissures, structural fissures and joints or in the broken belts of fold flanks. 矿体受地层和构造联合控制,一般产在褶皱的层间剥离裂隙、构造裂隙及节理中,或产于褶皱翼部的断裂破碎带内。
Uniaxial compression experimental research on deformation and failure properties of brittle marble specimen with pre-existing fissures 断续预制裂隙脆性大理岩变形破坏特性单轴压缩试验研究