查询词典 fracture

There are four kinds of fracture ways of 7075/SiC composite under high-temperature compression, which are the evulsions of SiC from the matrix due to forming cavity near the interface and intensive phase , ductile fracture of the matrix due to the nucleation of cavity near the interface , the fracture near SiC particulate coacervate and brittle fracture of the SiC particulate.

喷射沉积7075/SiC复合材料高温压缩时的断裂方式主要有四种，即空洞在增强相与基体界面处形成而出现增强相从基体中拔出的现象、空洞在基体中形核长大而引起基体的延性断裂、颗粒团聚处的断裂和颗粒的脆性断裂。

GD trestle is the best fixing style for open fracture, but its stability is worse.TCP fits for the fracture of various parts,especially the fracture near joint.But there is higher rate of infection,non-union and refracture in TCP.GK nail should be the first treatment of malunion fracture or old fracture.

UADF最适用于严重开放性骨折，但稳定性差；TCP可应用于各部位骨折，尤其是靠近关节的骨折，但感染率、不愈合率及取钢板后再骨折率高；GK钉固定病人恢复快，并发症少，骨折愈合率高；最适合用于节段性及陈旧性骨折。

The first 5 categories of the injuries were tibiofibula fracture(158 cases,13.37％),pelvis fracture(122 cases,10.32％),vertebral column fracture(120 cases,9.98％),femoral fracture(109 cases,9.22％),and forearm fracture/ disjointure(106 cases,8.97％).

疾病构成前5位为：胫腓骨骨折158 例(13.37％)，骨盆骨折122 例(10.32％)，脊柱骨折120 例(10.15％)，股骨骨折109 例(9.22％)，前臂骨折/脱位106 例(8.97％)。

objective to study the clinical features and law of injuries in sichuan earthquake-stricken area.methods register details of the patients,count and analyses the external factors and clinical features of injuries with the international classification of diseases-10(icd-10).results the main external factors of injuries were "hit by object" and "squeezed by object".the first 5 categories of the injuries were tibiofibula fracture(158 cases,13.37％),pelvis fracture(122 cases,10.32％),vertebral column fracture(120 cases,9.98％),femoral fracture(109 cases,9.22％),and forearm fracture/ disjointure(106 cases,8.97％).conclusion it's important to study the clinical features and injuries in earthquake-stricken area,for unseeing and distributing medical resource rationally.

目的 研究四川汶川地震所致伤员的伤情特点和规律。方法对我院收治患者进行登记，采用国际疾病分类方法(icd-10)统计、分析其损伤的外部因素、疾病分类及构成情况。结果本组患者主要损伤外部原因为被物体击中和被物体挤压。疾病构成前5位为：胫腓骨骨折158 例(13.37％)，骨盆骨折122 例(10.32％)，脊柱骨折120 例(10.15％)，股骨骨折109 例(9.22％)，前臂骨折/脱位106 例(8.97％)。结论深入研究地震所致伤员的伤情特点，对合理使用、调配医疗资源，更好地为灾民提供医疗服务有重要的指导意义。

Results In all the cases,the diagnostic rate of single rib fracture,multiple rib fracture,rib fracture with hydropneumothorax,rib fracture with pulmonary contusion was 86.7%,91.3%,90.5% and 94.1%,97.1% in multiple rib fracture of energy subtraction image.

结果 在本组病例中，标准胸片发现肋骨单发骨折、肋骨多发骨折、骨折合并液气胸、骨折合并肺挫伤的检出率分别为86.7%、91.3%、90.5%和94.1%；而能量减影仅在肋骨多发骨折中检出率为97.1%，其余检出率均为100%。

Through simulation of the real process of thomcolumbar burst fracture and use of modem dynamics techniques, the present study was (1) to investigate the kinetic relationship between structural damage and impact energy absorption and dynamics mechanism of thoracolumbar burst fracture by quantitative analysis of various injured segments;(2) to explore the instability mechanism of L1 vertebral burst fracture and its injury threshold by three-dimensional analysis of the injured segment with stereophotogrammetry in combination of transient physical parameters, anatomy and image;(3) to explore the corresponding relationships between impact energy, geometry parameters and biomechanics by geometry and biomechanical analysis of thoracolumbar burst fracture, which may provide an objective standard for evaluation of spinal injury severity and experimental evidence for adoption of biomechanical treatment in clinic;(4) to evaluate the fixation effect of different instruments and the effect of intervertebral bone graft on segment fixation by analysis of the threedimensional stability of different internal fixation instruments and their decompression of the spinal canal, which may provide experimental evidence for therapeutical selection for thoracolumbar burst fracture in future; and finally to investigate the effect of various instrument fixation on dynamical characteristics by comparison and quantitative analysis of frequency and amplitude responses, which may provide certain theories and experimental evidence for application of vibration test to judge the stability of the spine.

本研究从胸腰段脊柱爆裂骨折发生的实际过程出发，以现代动力学检测及计算机多通道高性能数据采集分析系统等高新技术为基础，实时量化分析损伤节段的工程参数，揭示了结构破坏与能量吸收的变化规律，探讨了胸腰段脊柱爆裂骨折的瞬态损伤机制；利用三维立体摄像技术，对不同损伤程度的节段进行三维运动分析，结合瞬态物理参数、影像学和病理解剖，明确了〓椎体爆裂骨折的失稳机制及损伤阈值；通过对胸腰椎爆裂骨折的几何学变化及生物力学分析，明确了撞击能量与几何参数、几何参数与生物力学的相应关系，为评判脊柱损伤程度提供了客观标准，为治疗中采取适宜的生物力学方法提供了实验依据；通过对比分析不同内固定器械的三维稳定性和对椎管的减压作用，评价不同器械的复位固定作用，同时比较椎体间植骨对节段固定作用的影响，为今后临床胸腰段脊柱爆裂骨折的治疗选择提供依据；利用振动测试与分析技术，比较及量化分析了不同致伤状况的频幅响应特征，比较分析了各种器械固定对动力学特性的影响，为今后临床建立基于振动测试与分析技术判断脊柱稳定性的诊断方法，提供了一定的理论和实验依据。

With the aid of the experiment, crack formation and its expand pattern of ZTA ceramics under ultrasonic vibration were analyzed, its fracture criterion was established and the experiment results showed that intercrystalline fracture is the main fracture pattern of ZTA ceramics under common grinding, and transcrystalline fracture is the main fracture pattern of ZTA ceramics under TDUVAG, and the finding add to evidence showing that TDUVAG has better material removal property.

基于该方法分析具有预制裂纹的ZTA纳米复相陶瓷材料在超声振动条件下裂纹扩展方式，确立其断裂判据，通过该断裂模拟试验得出：沿晶断裂是普通磨削主要的断裂模式，而穿晶断裂是二维磨削主要的断裂模式，进一步证明二维磨削具有较好的材料去除特性。

Fracture styles are consisted mostly of structural fracture, which not only make up the principal permeability contributor, but also control porosity distribution in the vertical and planar section. The matrix porosity has good correlation with the fracture's development in the Carboniferous bioclastic limestone member. High porosity zones are commonly found in fracture well developed parts such as structure axes, low porosity zones in less fracture structure nek.

裂缝以构造缝为主，裂缝不但是储层渗透率的主要贡献者，而且控制孔隙在垂向及平面上的分布：在纵向上，裂缝发育段也是基质孔隙发育段；而平面上，构造高部位等裂缝发育处孔隙度也相对较大，而在构造鞍部裂缝不发育区，孔隙度也低。

Aiming at the frequent occurrence of drill-string fracture during gas drilling in the Puguang gas field, this paper, based on the statistical analysis of accidents on fields, makes in-depth investigation into the origins of drill-string accidents in aspects of peculiar drilling medium, different rock-breaking methods, and the vibration of drill string during the drilling process. Through macro, micro and material analysis of the fracture surface of drill string, the law of drill-string failure due to fracture is discovered and the fatigue fracture is found out to be the main type of drill-string fracture.

针对普光气田气体钻井过程中存在的钻具断裂频繁的问题，在对现场事故统计分析的基础上，从特殊的钻井介质、不同的破岩方式以及钻井过程中钻柱共振等方面定性分析了钻具断裂的原因；通过对钻具断口宏观、微观及材质分析，找到了钻具断裂失效的规律和主要形式－疲劳断裂。

12patients were given fracture reduction,then penetrated 2 pieces of 3.5mm bony circular needle through fracture sections,tighten the jion-arm nut,the fracture sections will get in touch each other closely,then close the wound.Functional exercises would be given after 3 weeks.When X plain showed us the fracture reach or almost reach clinic heal,remove the external fixator which was substituted by using the small splint for protection untill fracture heal completely.

方法12例患者经整复骨折后，在骨折断端各贯穿2枚3.5mm骨圆针，旋紧连接杆螺母使骨折面紧密接触，然后根据伤口具体情况关闭伤口。3周后功能锻炼。X线复查证实骨折达到或接近临床愈合时拆除外固定器，改用小夹板保护至骨折完全愈合。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。