查询词典 torsion

New boundary integral equations for the torsion problem of an isotropic bar with curvilinear cracks are derived by using integration by parts and other techniques to the traditional boundary integral formulations. And the boundary integral equations for the torsion problem of an anisotropic bar with curvilinear cracks are also derived by using the isotropicalized boundary element method. Then the anisotropic problem can be solved on the base of the boundary element method of isotropic problem.

然后用各向同性化方法，将各向异性材料裂纹柱体的扭转问题转化为各向同性材料的问题，在各向同性材料裂纹柱体扭转问题的新的边界积分方程的基础上，推导出了适用于各向异性材料裂纹柱体扭转问题的边界积分方程，然后按已推导出的各向同性问题的边界元法求解。

Under cyclic pressure or torsion load, Four factors with two levels that might influence component stability were assembled into eight performing conditions by orthogonal design. Axial compression micromotion and torsion micromotion were cellected under the eight working conditions.

根据临床上多见的可能对假体微动产生影响的四种因素分设两个水平，采用正交设计方案，组合成8种处理工况对三翼臼进行轴向循环压力载荷测试，同理进行三翼臼的循环扭矩载荷测试。

Either of them predisposes the spleen to torsion.1 Acquired wandering spleen can also arise in multiparous women during pregnancy when ligamentous laxity occurs owing to hormonal changes.2 Chronic torsion can cause splenomegaly.

腹痛由脾脏包膜的收缩或局部腹膜炎引起。此外，尚可见贫血、白细胞计数增多，乳酸脱氢酶升高等。影像检查主要包括超声、CT、核素成像、血管造影。

For the application of Mathematica in the differential geometry,this paper introduces how to processe the curve curvature and the torsion questions,the graphic expression of the curvature and the torsions,and draw curves by the curvature and the torsions. Curvature ; torsion ; solution curve ; osculating plane ; natural parameter ; natural equation

利用Mathematica，只要输入有关系统命令就可以得到期望的结果。1曲率和挠率及其图形意义假设R3上的曲线一般参数表示为r=r它的曲率和挠率计算公式是：κ=‖r′×r"‖‖r′‖3τ=‖r′×r‖我们知道，空间曲线r=r在一点(s=s0)邻近的近似方程为ξ=sη=120κs2ζ=160κ0τs3通过近似方程可以确定曲线在其基本三棱形的三个平面(即密切平面，法平面，从切平面)上的投

In reparametrization with arcs length, the curvature and torsion is invariant to translation and rotation transformation. The curvature and torsion are views as feature sets.

无论是二维碎片物体还是三维碎片物体的形状复原问题，皆看成是特殊的物体识别问题，其特殊性就是在处理的方法上采用基于轮廓线的匹配来识别。

RESULTS: The biomechanical parameters (maximum torsional momentque, torsion angle and shearing elastic modulus) of Wistar rat's femur irradiated with 15 and 20 kGy were almost the same with that of control group in torsion test.

结果：15，20 kGy辐照组与未辐照组扭转试验的生物力学测试最大转矩、扭角和剪切弹性模量结果相近，差异无显著性意义。

Employing the Hopkinson torsion-tension combination bar system, the constitutive relations of soft aluminum under torsion-tension combined high strain—rate was obtained, The constitutive relations of Monel alloy under Dual—direction shearing high strain—rate was also investigated after special modification of above apparatus.

本文还利用分离式扭—拉复台霍布金森杆设备测试软铝在高应变率扭—拉复合载荷作用下的本构关系，并将该设备经特殊改装测试了蒙纳尔合金在高应变率双向剪切下的力学特性，目前也尚未见这方面的公开资料。

Objective: To evaluate the diagnosis and treatment of testicular torsion and spermatic cord torsion, and to improve its diagnosis and treatment.

目的：探讨睾丸和精索扭转的诊断与治疗方法，提高睾丸和精索扭转的治疗水平。

Methods: The clinical data of 68 cases of testicular torsion and spermatic cord torsion were summarizd and analyed.

对68例睾丸和精索扭转的临床资料进行总结，68例平均年龄21岁，0岁者占84%，左侧55例占80.8%，发病至确诊时间6h~30天，12h以上者占90.2%。

The influence of arrangement of the anti-sideways elements on the structural tor- sion was discussed. The formula of structural torsion stiffness was given. The method to decrease the structural torsion effect was found.

考察了抗侧力构件布置对结构扭转效应的影响，给出了结构抗扭效应近似计算中扭转刚度的计算公式，通过参数分析，分析了结构抗扭刚度的影响因素，指出了减小结构抗扭效应的途径。

In contrast to the ubiquitous rising-sun-with-rays military flag of the Japanese, Chinese banners and ensigns feature a range of designs.

与遍地都是的太阳军旗不同，中国人的旗帜和徽章设计得各式各样。

From their small corner of Feng's Guangzhou headquarters -- a jumble of pink leashes, squeezable rubber steaks, and plastic doggy Santas for Fido's stocking -- Soleil's designers come up with at least five new products a month.

从Feng 设在广州总部的产品展示柜台上可以看到，Soleil的设计师每月至少设计出5件新产品。