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Cornea and conjunctiva structures were evaluated by light and electron microscopy.

用光镜和电镜观测角膜及结膜的结构。

Introduced are specialities,structures and parameters of some newly developed well logging tools used by eminent well logging companies in the past few years,such as the new 3-D electrode-type logging tool,the new asymmetrical array induction logging tool,the new micro-resistivity pad tool,the oil-based mud imaging tool,the novel through-casing resistivity tool,the formation tester with an oval pad,the ArmadaTM sampling system and the ConneX perforating system.

介绍了国外测井公司近年来推出的电缆测井新技术以及新型或改进型测井仪器的特点、结构组成及工作参数。主要包括：新型3D电极电阻率测井仪器、新型阵列感应测井仪器、新型微电阻率极板仪器、油基泥浆成像仪器、低污染流体采样技术、新一代油管传送流体采样系统、具有椭圆形极板的地层压力测试仪器和ConneX射孔系统。

The surface is a visible element of architecture that wraps the architectural space and structures, as well as human being's activities. It forms a consecutive integer.

表皮作为建筑最表观的要素，包裹着建筑的空间、结构和人的活动，并与之形成一个不可分割的整体。

Like all monarchical structures, primacy can be and usually is a very conservative force, though it can also initiate sweeping change, as in the reforms of the last two decades.

象所有君权结构，首要可以和通常是一个非常保守势力，虽然它也可以主动清扫改变，因为在改革过去二十年间。

ABSTRACT We have investigated transport properties of electrons in magnetic quantum structures under an applied constant electric field.

对磁量子结构中电子在外加恒定电场下的输运性质进行了研究。

As the growth of the age, be in after achieving autumn, all sorts of structures of human body and function begin constant change, the consenescence on this kind of physiology can happen in each place of the body.

随着年龄的增长，在达到成熟期以后，人体的各种结构和功能就开始不断的变化，这种生理上的衰老在身体的各个部位都会发生。

Based upon all above-mentioned, a mathematical representation for multi-material structures is proposed by means of vector level sets, and the general structure topology optimization can be expressed by a constrained functional minimization problem of a set of level set functions.

同时，还提出了在有效约束切空间上构造的非线性映射技术，以改进向量水平集的演化方向，可提高计算效率2到3倍。

Using level-set method, mathematical representation for contimuum structures is proposed by means of the vector of level-set, and the general structure topology optimization can be expressed by a constrained functional minimization problem of a set of level set functions.

其次利用水平集方法将一般拓扑优化问题描述为一组水平集函数的约束泛函极小化问题，应用敏度分析，给出了此泛函极小化数值迭代求解公式，即水平集演化方程。

This paper introduces several typical structures of HCB and expatiate on the principle of naturally current commutating and constrainedly current commutating .

介绍了几种混合式断路器的典型结构，阐述了自然换流和强制换流的原理。

The several typical structures of HCB, the principle of naturally current commutating and constrainedly current commutating were presented.

阐述了自然换流和强制换流的原理及IGBT软关断技术。

"Second Life is remarkably easy to work with, and is very popular,"

"第二次生命是显着容易的工作，并且很受欢迎，"

For example, we usually assume that materials are homogeneous and isotropic and free of internal defects or flaws.

为了得到适合有限元分析的模型，我们必须经过如图2所示的简化步骤。