光弹性的

In this paper, photoelastic coating method and strain-gauging method were used conjointly to study the stress distribution of the column of cross wedge rolling machine. The result of study deepened the understanding of this complicated problem and there is certain reference value on improving the stress distribution of the column.

本文利用光弹性贴片法，辅以电阻应变片法，对楔横轧机机架模型的应力分布规律进行了研究，研究结果深化了对这一复杂问题的认识，得到了一些有价值的结论，对于采用合理设计来改进机架的应力分布也有一定的参考价值。

Preiss angle (P .0l ), for the stick pestle can complement the strength for correcting the broadenth of the cross radius of the calcaneus, and the plaster splints are strong enough to fix the ankle firmly at the metatarsus posture.

第二部分为生物力学的实验研究，采用电测法与三维光弹性实验，研究跟骨在中立位及不同角度的跖屈位时应力分布的规律，分析跟骨在不同体位时应力和位移情况，探讨跟骨骨折的发病规律及合理的治疗方法。

The photoelasticity experiment was made to get the pressure distribution, and its results were loaded as the boundary conditions in finite element analysis to calculate the stress field of flat extrusion chamber.

针对扁挤压筒内应力的解析法求解非常困难，且很难有精确理论解的特点，用光弹性实验方法确定挤压力的作用方式，以此作为有限元计算的边界条件，对扁挤压筒内部应力场进行分析计算。

Based on the eight-step phase shifting technique, three methods to determining the first principal stress direction of the slice are discussed.

在光弹性八步相移法的基础上，提出了确定模型切片的第一主应力方向的三种方法。

With the photoelastic coating method, the process of crack propagation was systematically observed.

本文最后用光弹性贴片法，对混凝土预制裂缝的起裂、稳定扩展直至失稳破坏的全过程进行了系统的研究，得到了混凝土裂缝扩展全过程的完整而直观的观测结果。

OBJECTIVE: To explore the dynamic viscoelasticity difference of unpolymerized light-cured composite resins with retentive filler or normal filler, and to investigate effect on the clinical manipulation properties of rheological behaviors in two light-cured composite resins to define an ideal resin.

目的：评价含固位性填料（retentive filler，RF填料）和普通填料（normal filler，NF填料）的未聚合光固化复合树脂的动态黏弹性，并探讨两种光固化复合树脂动态黏弹性对临床操作性能的影响，以确定理想的光固化复合树脂应具备的条件。

"The perfect female derriere has firmness to the touch and a resilience that prevents undue wobble or bounce, yet looks soft with flawless skin," said Dr. David Holmes, a psychology lecturer at Manchester Metropolitan University, who devised the formula for measuring ones moons.

英国曼彻斯特市立大学的心理学讲师David Holmes博士设计了测量人类光屁股的数学公式，他说：最佳的女性臀部应该没有过度的摇晃颤动或弹跳，摸上去坚实，有弹性。

"The perfect female derriere has firmness to the touch and a resilience that prevents undue wobble or bounce, yet looks soft with flawless skin," said Dr. David Holmes, a psychology lecturer at Manchester Metropolitan University, who devised the formula for measuring one's moons.

英国曼彻斯特市立大学的心理学讲师David Holmes博士设计了测量人类光屁股的数学公式，他说：最佳的女性臀部应该没有过度的摇晃颤动或弹跳，摸上去坚实，有弹性。

The optic elastic effect of optic material,the interference theory of linear polarization light and the characteristics of the manometers for production logging are analyzed to design a new type of downhole photoelectric manometer.

分析了光学材料的光弹性效应及线偏振光的干涉理论，结合井下压力计的特点，设计了一种新型的井下压力计———光电压力计，该压力计能够在流体流动或关井条件下沿井眼测量某一目的深度上的流体压力。

As experimentalists, we apply photoelastic materials in our granular experiments, to retrieve more physics information from the systems, and thus to provide a way to compare with theoretical predictions.

我们作为实验工作者，将在工程中用到的光弹性材料技术应用到颗粒物质实验中，为验证比较各种理论的合理性提供了有效的帮助。

Methods: Five patients with parkinsonism or dystonia were assigned to general anesthesia using an modified endotracheal tube.

本实验依照人体实验之相关规定进行，五位患有帕金森氏症或肌张力异常的病人接受神经立体定位手术。

If you can benefit from this book, it is our honour.

如果您能从本书获益，这将是我们的荣幸。