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characteristics of fractures
相关语句
  裂缝特征
     Characteristics of fractures of Chang-6 low-permeability reservoir in Chuankou oil field, Shan-Gan-Ning basin
     陕甘宁盆地川口油田低渗透油藏长6油层裂缝特征
短句来源
     First,by taking individual well as the basis,the characteristics of fractures in the heterogeneous oil and gas reservoir near borehole wall are studied and the velocity anisotropism can be researched by the DSI logging method,because the interval transit time and energy difference between the fast and slow shear-waves logged by DSI may comprehensively reflect the formation velocity anisotropism;
     首先以井为基础 ,研究井壁附近非均质油气藏储层的裂缝特征 ,用DSI测井研究速度各向异性 ,DSI所测快、慢横波的时差和能量差综合地反映了地层速度的各向异性。
短句来源
     Through investigating a large amount of core data, the characteristics of fractures were described and recorded as log curves in detail.
     在大量观察岩心资料并对裂缝特征进行详细描述的基础上 ,对测井曲线进行岩心标定。
短句来源
     Aim In order to grasp the characteristics of fractures of Chang 6 oil-bearing of Yanchang Formation in Yan′an area and its effect on development of watering.
     目的了解延安地区长6油层组裂缝特征及其对油田开发的影响。
短句来源
     The characteristics of fractures of Chang 6 oil-bearing of Yanchang Formation in Yan′an Aera and its effect on development of watering
     延安地区长6油层组裂缝特征研究
短句来源
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  “characteristics of fractures”译为未确定词的双语例句
     Types and characteristics of fractures in tight sandstone gas reservoirs with low permeability
     低渗透致密砂岩气藏裂缝类型及特征
短句来源
     DISTRIBUTION CHARACTERISTICS OF FRACTURES IN LOW PERMEABLE RESERVOIRS IN AN EXTENSIONAL STRUCTURAL REGION
     伸展构造区低渗透储层构造裂缝的分布特征
短句来源
     Research on characteristics of fractures of coal reservoirs porosity in the Ordos Basin
     鄂尔多斯盆地煤储层孔隙分形特征研究
短句来源
     The fractal characteristics of fractures in expansion soil and its significance
     膨胀土裂隙结构的分形特征及其意义
短句来源
     THE FRACTAL CHARACTERISTICS OF FRACTURES IN Ⅵ16—17COAL OF NO5 MINE AND ITS IMPLICATION
     平顶山五矿己_(16—17)煤裂隙分形特征及其研究意义
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  相似匹配句对
     And the characteristics of the G.
     通过仿真和实验,也验证了G.
短句来源
     The characteristics of G.
     论文首先对语音编码的各种方案进行了比较,并对G.
短句来源
     characteristics;
     三、发展的特点;
短句来源
     The clinical characteristics and the treatment on mandible fractures
     下颌骨骨折的临床特点与治疗
短句来源
     CHARACTERISTICS OF THE MATURAL FRACTURES IN TOUTAI OILFIELD
     头台油田天然裂缝特征
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  characteristics of fractures
Structural characteristics of fractures in titanium alloys containing β-stabilizers
      
The characteristics of fractures, the causes and conditions of their formation, and the interconnection with the mechanical properties of the metal are considered.
      
The characteristics of fractures, the causes of their formation, the methods for fighting and eliminating them, and the interrelation with the mechanical properties of the steel are described.
      
The characteristics of fractures in Polish adolescents aged 16-20?years
      
The special characteristics of fractures in childhood are due to the nature of the growing bone.
      
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The solidification crack tendency of weld metals of fifteen types of fully austenitic stainless steels and heat-resistant cast alloys were overall quantitatively evaluated by using the tester having been carried out an improvement on Trans-Varestraint test and made in our institute. These indices-BTR of seven types of fully austenitic heat-resistant cast alloys and their corresponding solidification ductility curves have been first proposed in this paper. According to morphology regularity of solidification,...

The solidification crack tendency of weld metals of fifteen types of fully austenitic stainless steels and heat-resistant cast alloys were overall quantitatively evaluated by using the tester having been carried out an improvement on Trans-Varestraint test and made in our institute. These indices-BTR of seven types of fully austenitic heat-resistant cast alloys and their corresponding solidification ductility curves have been first proposed in this paper. According to morphology regularity of solidification, cracking occurring in weld metals during the testing, new points on solidification cracking have been advanced, such as the use of the two-dimensional temperature field to analyse the characteristic of fracture mophology corresponding to the solidification cracking, the "horn-fracture model of solidification cracks" and the approximately formula for calculating horn-fracture area of solidification cracks-S being served as a new index to quantitatively evaluate the solidification crack tendency of weld metals. Therefore a new approach is provided for the investigation of propagation mechanism of solidification cracks in weld metals .

文中通过改进的TransVarestraint试验法(采用我院研制设备)对15种全奥氏体不锈钢及铸造耐热合金的焊缝凝固裂纹倾向进行全面的定量评定。首次提出了七种全奥氏体铸造耐热合金的BTR指标和对应的凝固塑性曲线。并对试验条件下产生的凝固裂纹形态规律提出了新的观点:采用二维温度场分析凝固裂纹断口的对应形貌特征;提出了“角形凝固裂纹断口模型”;推导了角形断口面积的近似计算公式。进而可得出评定焊缝凝固裂纹倾向的新的定量指标——角形断口面积S。为研究焊缝凝固裂纹扩展机制提供一新的途径。

Theoretical studying has indicated that the behaviour of surrounding medium of water has a large effect on the stress corrosion process of fracture in rock. So far, experiments made for stress corrosion in rock have been done under the situation of static water. In this experiment, the subcritical develop characteristics of fracture caused by stress corrosion n Yuennan marble samples under the situation of static and flowing distilled water have been studied respectively. The results show that flowing...

Theoretical studying has indicated that the behaviour of surrounding medium of water has a large effect on the stress corrosion process of fracture in rock. So far, experiments made for stress corrosion in rock have been done under the situation of static water. In this experiment, the subcritical develop characteristics of fracture caused by stress corrosion n Yuennan marble samples under the situation of static and flowing distilled water have been studied respectively. The results show that flowing of the medium of water around fracture may accelerate the stress corrosion process of the end of fracture. It is perharps of great signifieanse to the study of earthquake source process and the precursor just before earthquake.

理论研究[1]表明,环境水介质的动态对岩石中裂缝的应力腐蚀过程有很大的影响。但迄今为止,岩石的应力腐蚀实验都是在水介质静止情况下作的。本实验对比研究了蒸馏水静止和流动情况下云南大理岩试件应力腐蚀引起的亚临界裂缝扩展特征。结果表明,裂缝周围水介质的流动会加速裂缝端部的应力腐蚀过程,这对于震源过程及临震前兆的研究可能有重要意义。样品采用紧凑拉伸试件,同时测量了断裂韧性K_(Ic)=(1.41±0.013)kg·mm~((-3)/2),并对人工狭窄锯口与天然初始裂缝的试件进行了对比测量,认为对于云南大理岩的紧凑拉伸试件可以用人工狭窄锯口代替天然初始裂缝。

The fracture appearance of Horn-Shaped propagation of solidification cracks occured in weld metals of two austenitic heat-resistant steels was presented in this paper. SEM observation was performed following the Trans-Varestraint test. The fracture morphology near the higher temperature side of Horn-Shaped (Brittleness Temperature Range-BTR) shows that the cracked surface has the characteristic of fracture morphology of higher temperature crack-openning, that is, there are intergranular liquid...

The fracture appearance of Horn-Shaped propagation of solidification cracks occured in weld metals of two austenitic heat-resistant steels was presented in this paper. SEM observation was performed following the Trans-Varestraint test. The fracture morphology near the higher temperature side of Horn-Shaped (Brittleness Temperature Range-BTR) shows that the cracked surface has the characteristic of fracture morphology of higher temperature crack-openning, that is, there are intergranular liquid films and/or liquidus bridges observed on the fracture surface. The fracture morphology near the lower temperature side of Horn-Shaped (BTR) shows that the cracked surface has the characteristic of fracture morphology of lower temperatme crack-openning, that is, intercolumnar ridge line and/or ring ridge or some bud segregation for fully austenitic cast steels. It is proposed that there are three stages in the process of complete columnar crystal growth in weld metals. The Ta maximum and Tb minimum isotherm of BTR (Horn-Shaped) were discussed.

文中介绍了二种奥氏体耐热钢(4Cr25Ni13、4Cr22Ni14)横向可调拘束裂纹试验的角形裂纹断口扫描电镜观察研究的形貌特征。首次提出了焊缝脆性温度区间(BTR)高温侧开裂区常具有晶间液相膜和/或液相断桥的特征以及ETR低温侧开裂区常具有条形脊和/或环形脊的特征形貌。还验证了焊缝区内所具有的三种结晶形貌的柱状晶组织。在讨论中提出了BTR(角形裂纹)上、下极限等温线的温度值。

 
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