To the problem of the formation not producing water at pre-fracture and producing water at post-fracture,it is very important that the forecast at pre-fracture time for producing water layer of the well whose oil productivity is smaller than that at pre-fracture because of too much of water production.
针对压裂前测试不产水、压裂后地层产水;由于产水量过大,产油量比压裂前还低的井进行压后产水层的压前预测十分必要。
Model building method which forms radial singular unit meshes in the crack front and the method which applied boundary conditions of crack model by finite element contact technique are used and then the simulation of the singular stress field of the crack front and the far field stress of the crack model are realiz.
基于MSCMarc有限元软件,采用模块化有限元建模技术和接触技术仿真半椭圆表面裂纹(前缘曲线和节点),采用在裂纹前缘形成辐射状奇异单元网格的建模方法和接触技术来施加边界条件的方法,从而实现裂纹前缘奇异应力场和裂纹模型远场应力的模拟。
Radial singular unit meshes in the crack front were use to simulate the singular stress field of the crack front.
基于MSC Marc有限元软件,通过编程实现了参数化、模块化建模与分析的自动化;采用模块化有限元建模技术和接触技术仿真半椭圆表面裂纹(前缘曲线和节点),采用在裂纹前缘形成辐射状奇异单元网格的建模方法和接触技术来施加边界条件的方法,实现裂纹前缘奇异应力场和裂纹模型远场应力的模拟。
After through the dura, the artery was divided into ascending and descending branches with a sharp angle.
腰膨大动脉穿硬膜后于脊髓前正中裂分为升、降两支 ,其与降支夹角成锐角 ;
This is holoprosencephaly in which there is a single large ventricle with fusion of midline structures, including thalami.
前脑无裂畸形，是一个较大正中线结构消失的脑室，包括丘脑。
Correction of premaxillary bone protrusion deformity in bilateral lip cleft using improved black method
改良Black术式纠正双侧唇裂前颌骨前突畸形
The Application of Slip-lamp Anterior Segment OCT in the Ocular Anterior Segment Examination;
裂隙灯前节OCT在眼前节检查中的应用
Indeed many of the worst elements among the big landlords and big bourgeoisie are at this very moment engineering a split in the Anti-Japanese National United Front.
目前大地主和大资产阶级中的许多最坏的分子，正在策动分裂抗日民族统一战线。
Failure Analysis of the Front Fork of a Motor Tricycle
普通正三轮摩托车转向前叉断裂原因分析
Simple Analysis on the Disjunctions of Previous Chinese Society and Culture;
浅析当前中国社会文化中的断裂现象
The Burst pipe was spewing out dirty water
污水正从破裂的管子中往外喷。
The Application of Proactive Research in Disruptive Innovation Management;
前摄研究在分裂式创新管理中的应用
The Japanese army were on the march.
日本军队正前进中。
Diakinesis The last stage of the PROPHASE in the first division of MEIOSIS.
终变期：减数分裂第一次分裂前期中的最后一个阶段。
The yield zones he found in polycabonate were slits extending ahead of the crack.
他发现聚碳酸脂中的屈服区是延伸至裂纹前沿的长条裂缝。
Maybe I had been fired at the perfect time, right before everything fell apart.
也许我被解雇得正是时候，刚好赶在天崩地裂之前。
She had not noticed it before because of the other pain, the agonizing pain that was tearing deep into her bowels.
她先前没有注意到，因为她正被另一种使她五脏俱裂的痛楚所缠绕。
To protrude through an abnormal bodily opening.
成疝，突出从不正常的身体裂缝中突出出来
The group have split away/off from the official union.
这一部分人已从正式的联盟中分裂出来了.
A clinical application of orthodontics for the patient with clef lip and palate in theam
唇腭裂序列治疗中的正畸治疗(附11例报告)
Multiple Parton Scattering and Modified Fragmentation Functions in Nuclei;
核环境中部分子的多重散射与碎裂函数的修正