The crystal is shiny glass, but is common to the oil sheen on the surface of fracture.
晶面呈玻璃光泽，但常见到的是断口面上的油脂光泽。
The chemical composition, metallographic structure, hardness and surface of fracture are analyzed herein for the broken blade and lacing wire in order to find the cause of blade fracture.
针对断裂叶片及拉筋进行了化学成分、金相组织、硬度、断口等分析，以便找到叶片断裂的原因。
The fault, fracture, unconformable surface and reservoir are the major channels of hydrocarbon migration in gentle slope belt.
断层、裂缝、不整合面和储层是缓坡带油气运移的主要通道。
It show that the fracture surface of pure epoxy resin appears brittle fracture, but the modified epoxy resin appears gliding fracture.
电镜图片表明，纯环氧树脂断裂面呈现明显的脆性断裂，而改性环氧树脂为韧性断裂。
The results showed that the fracture surface of the modified systems displayed tough fracture features, markedly different from that of the unmodified epoxy resin system.
结果表明，增韧后材料的断面形态明显不同于未改性体系的形态，试样冲击断裂面形态具有明显的韧性断裂特征。
The influence of fracture mode and wear surface pullout on wear resistance was studied.
研究了断裂方式对磨损表面剥落和耐磨性的影响。
The main factors influencing the gas preservation condition includes the fault amplitude, fault fragmented intervals, fault surface dip, and the position of fracture cavity system in the faulted zone.
大断裂影响缝洞系统保存条件的主要因素包括：大断裂断距、断层上消失层位、断面倾角、盖层厚度以及缝洞系统所处断裂带位置等。
In the case of the limited level density of the material surface energy, the fracture stress and the calculation formula of the engineering damage were studied.
本文研究考虑损伤时材料的断裂应力，推导出了在表面能密度有限的情况下，损伤断裂应力的计算公式。
The fracture energy GF of concrete is one basic material characteristic, representing the energy necessary to create a unit area of fracture surface.
混凝土断裂能G _ F是材料的一个基本性能，表示扩展单位裂缝面所需要的能量。
The fractal dimension of fracture surface was measured directly by using projective covering method and laser triangulation technique.
采用投影覆盖法结合激光三角测试技术，直接测定了混凝土断裂表面分维值。
The results showed that the fracture was of typical fatigue fracture, and surface defects were the main factor resulting in the failure of the air valve spring.
结果表明，断裂呈现典型的疲劳断裂特征，材料表面缺陷是引起该弹簧疲劳断裂的主要原因。
Fractal dimension of impact fracture surface of 08f steel was measured by vertical section method.
利用垂直截面法测量了08f钢经不同形变氮化复合后冲击断裂表面的分形维数。
Objective To investigate the MRI features of osteochondral fracture in the joint surface.
目的探讨关节表面骨软骨骨折MRI表现。
With the increase of displacement speed, fracture mode of the river patterns gradually became obvious and fracture surface became coarser.
随着加载速度的加快，河流纹断裂形态逐渐变得明显，同时断口形貌变得更加粗糙。
The fatigue fracture surface features of blade are summarized firstly.
归纳总结了叶片疲劳断口的特征形貌。
The pattern of a brittle fracture surface of FEP copolymer is confirmed as fracture curve and the center of each curve is a flaw.
用金相显微镜等方法确认了国产FEP树脂的脆性断裂图案是断裂曲线，曲线中心为弱点。
The fracture surface of a failed injection valve nut of diesel engine high pressure oil pump was investigated by visual and SEM.
对断裂的汽车柴油机高压出油阀紧座的宏观、微观断口及显微组织进行了研究。
Objective To discuss the therapy for acetabular comminuted fracture with compressive articular surface of the acetabulum.
目的探讨治疗髋臼骨折合并髋臼关节面压缩缺损的手术方法与措施。
The high fatigue properties were found to be related with higher crack closure stress, rough fracture surface and tortuousity of crack path.
较高的疲劳性能与裂纹尖端闭合应力、断口表面粗糙度以及裂纹扩展路径弯折程度有关。
Calculated results show that this relationship can be successfully used to describe the fracture behavior of surface crack problems.
一些半椭圆表面裂纹问题的计算表明本文给出的关系式简单、有效。
A new method of recognition and classification of metal fracture surface models based on wavelet transform is presented in the paper.
实验结果表明，这种方法可以对金属断口模式进行准确的识别与分类。
The relation between fracture energy of layer surface and fracture energy of RCC is analyzed.
分析碾压混凝土本体断裂能与层面断裂能关系。
Hot ductility testing was used to evaluate the liquation cracking susceptibility of aluminum alloy 2219. The fracture surface of hot ductility samples was examined using SEM.
用热塑性试验评定2219铝合金的液化裂纹敏感性，利用扫描电镜对热塑性试样断口进行了分析。
The cause of fracture is related with tempering temperature, machining defects on the surface and chemical composition of the fracture bolt.
主要原因与热处理回火温度、表面加工缺陷以及材料化学成分有关。
When the shrinkage of the rod fracture surface much more than that of the cup part fracture surface, its formation by compound extrusion is not applicable.
当杆的断面收缩率比杯形部分断面收缩率大得较多时，不适合直接用复合挤压成形。
When the shrinkage of the rod fracture surface much more than that of the cup part fracture surface, its formation by compound extrusion is not applicable.
当杆的断面收缩率比杯形部分断面收缩率大得较多时，不适合直接用复合挤压成形。
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