几何形状

Based on a nonclassical theory of plasticity and the continuum damage mechanics,a damage constitutive equation is obtained for the ferrite phase with the damage evolution law for mixed hardening materials from an ellipsoidal void model under particular coordinates,where the void shape variation is considered.

基于非经典塑性理论和连续介质损伤力学，利用在一个特殊坐标系下基于椭球形孔洞模型得到的可考虑孔洞形状变化混合强化材料的损伤演化率得到了铁素体相的损伤本构方程，通过混合物理论利用铁素体和渗碳体相各自本构关系并考虑其几何特征得到了珠光体团的损伤本构模型。

The geometry transformation of wing was conducted by means of shape function born of finite element method.

本文引入了等参单元形函数的几何变换思想，利用径向基函数，解决了复杂形状机翼的二维气动代理模型的构造问题，进行了某巡航导弹弹翼考虑结构变形的气动力代理模型的构建。

This research presented a new guide mechanism and belt driving theory of the abrasive band polishing for inner aperture, satisfied the driving requirement of abrasive belt leading smoothly into grinding area, realized the band grinding and band polishing of inner aperture, developed a abrasive band polishing headstock for of the ball track of ball bearing and roller bearing individually adopting a way of curvature concave oscillating and vibrating, researched the process regular and fundamental process method and parameter of abrasive band polishing of ball track. The results of experiments and tests showed that the surface roughness of ball track by abrasive band polishing can reach Ra0.02μm, and the original geometric cross section shape precision of ball track can be kept.

本项研究提出了砂带研抛内孔的新型导引机构和传带原理，满足了砂带平稳导入内孔磨削区的传动要求，实现了内孔的砂带磨削和研抛；研制了采用弧面摆动和振动方式分别用于球轴承滚道和滚柱轴承滚道研抛的砂带研抛头架；研究了轴承滚道砂带研抛的工艺规律和基本工艺方法、工艺参数；实验测试结果，轴承滚道砂带研抛的表面粗糙度达Ra0.02μm，研抛过程保持了滚道的原始几何截面形状精度。

Till now, it's hard to find an efficient and speedy way to get a good raceway figure geometric precision on raceway while machining.

滚珠螺母滚道的加工难度随着它的螺旋角的增大而增加，至今还没有可以达到较好的滚道形状几何精度的高速高效的加工方法。

Surfaces of Revolution in E_2~4 Space;2. The subdivision rules based on the geometric interpretation of the tensor product scheme, and it can reproduce the surfaces of revolution .

其细分规则基于张量积曲面细分模式的几何意义，不仅可以生成旋转曲面等特殊曲面，而且可以根据参数来控制细分曲面的形状。

Images formed by Mother Nature contain marvelously varied patterns, shapes, geometric proportion, color and depth.

影像形成的大自然包含marvelously不同模式，形状，几何的比例，颜色和深度。

Because of the vesicle's impenetrability, the rod segments exert an inhomogeneous entropic pressure on the vesicle and induce a change of the vesicle shape.

由于囊泡膜对刚棒的几何空间限制，减少了刚棒的活动空间，其构象熵减少，因此对囊泡膜表面施加不均匀的熵致压力，导致刚棒锚泊囊泡的形状变化。

Because of the vesicle\'s impenetrability, the rod segmentsexert an inhomogeneous entropic pressure on the vesicle and induce a change of the vesicle shape. The interaction between the rod segments and the vesicle membrane exerts an extra tension to the membrane.

由于囊泡膜对刚棒的几何空间限制，减少了刚棒的活动空间，其构象熵减少，因此对囊泡膜表面施加不均匀的熵致压力，导致刚棒锚泊囊泡的形状变化。

The relations between the numbers of measured points and measuring error are found based on least-square method in calculating the geometric paramteters of circle, sphere, plane etc. Furthermore the choice of the number of measured point and their distribution have been recomended instructively.

为了减小偶然误差或消除零件表面形状误差对测量结果的影响，往往多测数点或数十点，本文推导出了使用最小二乘法计算几何参数时，如圆、球、平面等，测量点数与测量误差的关系，对测量点数及测点位置的选择提出了指导性意见。

The effects of different parameters and cross-sections on axial velocity, the distribution of secondary flow, temperature field, turbulent kinetic energy, wall friction coefficient and wall Nusselt number are analyzed in detail.

详细分析了充分发展的和发展段的湍流管道内，不同截面形状和几何参数对轴向速度分布，截面二次流结构，湍动能，曲线管道摩擦比，温度分布和曲线管道Nusselt系数比等管道流动和传热特性的影响。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。