查询词典 fracture

ABSTRACT Based on the existing damage model of rock blasting and the theory of rock damage and fracture, a new damage model for rock blasting, a gas-driven fracture propagation and damage localization at the crack tip model during explosion products are proposed.

在分析研究现有岩石爆破损伤模型和岩石损伤断裂理论的基础上，建立了一个新的岩石爆破损伤模型和岩石在爆生气体作用下的裂纹扩展及裂纹尖端损伤局。。。

The mechanical properties of the modified material were tested, and the thermal stability of the modified EP blend was also investigated by TG. The results indicate that the graft copolymerization between PU and EP effectly inforces the miscibility of the PU/EP system. Compared with the properties of pure EP, the impact strength and tensile strength of the PU/EP with high thermal stability are markedly enhanced, and the fracture surface of the PU/EP system displays tough fracture features.

研究结果表明：PU和EP分子链之间存在着化学接枝反应，能有效地改善PU/EP体系中PU和EP分子间的相容性及相互贯穿；与TDE-85与E-51的混和环氧树脂比，PU改性TDE-85与E-51的混和环氧树脂仍然具有很强的耐热性能，并且冲击强度、拉伸强度均获得显著提高；PU/EP体系断口裂纹呈明显的韧性断裂特征，说明TDE-85与E-51的混和环氧树脂PU改性增韧效果明显。

Methods 12 middle-age patients with single femoral neck fracture underwent DSA of selective deep femoral artery and femoral circumflex artery from 2 to 5 days after fracture in the absence of traction, in the presence of 4 kg hip traction in the neutral position and in the intorted position without traction.

对12例青壮年股骨颈骨折在2～5 d内进行旋股内、外及支持带动脉造影，造影中均采用中立位无牵引、中立位5 kg牵引及内旋位无牵引3种形式。

Tibial plateau fracture is intra-articular fracture of weight loading joint with high incidence rate.

胫骨平台骨折是负重关节的关节骨折，发病率较高，对康复的要求也很高。

3The repair of wound surface and the local dressing changes are not affected in the case of open fracture with severe soft tissue injury or juxta-articular fracture.

对合并严重软组织损伤的开放性骨折或邻近关节的骨折，不影响创面修复和局部换药；4。

To the femoral neck fracture with neck-shaft angle of less than 135 degree, the fixation with the entry angle of less than 135° can make the neck-shaft angle rising, meanwhile, lag screw's location is easier to trend to the inferior of femoral head, displacement and angle between fracture surfaces satisfy the demand of functional reduction or extroversion reduction, and a satisfied stability is performed in biomechanical test.

对于颈干角小于135°的股骨颈骨折，以低于135 °的进钉角度固定时，能增大颈干角，同时拉力螺钉的位置更容易偏向股骨头颈的中、下部，骨折端的位移、成角也能够符合功能复位的要求，在力学测试中表现出较好的稳定性。

Using core observation, new logging technology, conventional well logging method and so on, We can recognize fracture and have obtained the fracture recognition method in Shi 35 well field with the conventional well loggings and the new logging technologies.

利用岩芯观察、测井新技术及常规测井方法识别裂缝，归纳出狮35井区裂缝在常规测井和测井新技术中的识别方法。

Objective To investigate the effects of retro-interlocking bone nail fixation method applied to supracondylar fracture of femur.Methods Follow up 38 patients of supracondylar fracture of femur which were applied with retro-interlocking nail fixation method for 3～26 months and analyze the curative effects.

目的 探讨股骨髁上骨折行逆向交锁髓内钉固定治疗的效果方法对38例股骨髁上骨折行逆向交锁髓内钉固定治疗，术后追踪随访3～26 月，对其效果进行分析。

Key words femoral intertrochanteric fracture;gamma 3 nail;intenal fixation of bone fracture

股骨转子间骨折；Gamma钉；骨折内固定术

OBJECTIVE: To study the effects of coated and uncoated materials made by elastic nickel-titanium alloy internal fixator on fracture healing and to compare the effects of continuous compressive stress after internal fixator of different types on fracture healing by setting up control group of bone nail internal fixation.

目的：观察表面改性及未改性的弹性镍钛合金内固定材料对骨折愈合的影响。同时设置髓内钉内固定材料做对照，比较弹性内固定材料在持续应压力下对骨折愈合的影响。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。