结构段

Adjacent grooves in the first groove set are separated by a distance sufficient to define therebetween a structure defined by a first optical surface (142) on one side, a top surface (146) and a first non-optical surface (150) opposite the first optical surface.

第一沟槽组中的相邻沟槽相隔一段足以在两者之间限定由位于一侧上的第一光学表面（142）、一顶面（146）和与第一光学表面相对的第一非光学表面（150）所限定的结构的距离。

Believe that experienced a period of time after the throes of structural adjustment, China's economy will become more and more healthy and vibrant.

认为，在经历结构调整的阵痛在一段时间内，中国经济将越来越健康和充满活力。

In terms of the topological invariant in Riemann-Cartan spacetime proposed by Prof. Duan and the φ-mapping topological current theory, we gave the cosmic strings with the complex scalar field and showed that the strings appear in the zeroes of the scalar field. Meanwhile one can find that the length of cosmic strings is quantized in the topological level and the quantum number is determined by Hopf indices and Brouwer degrees.

以段一士教授提出的Riemann-Cartan流形中的新拓扑不变量为基础研究了宇宙弦的拓扑结构，指出宇宙弦只能存在于复标量场的零点处，而且在拓扑层面上是量子化的，而该量子数决定于Hopf指数和Brouwer度。

In this thesis we study largely two problems in the context of the φ-mapping topological current theory proposed by Prof. Yishi Duan, ranging from inner structure of homotopy in algebraic topology to topological excitations in the atomic Bose-Einstein condensates.

本论文在段一士教授提出的φ映射拓扑流理论框架内研究了两个问题：代数拓扑中同伦理论的内部结构，及原子玻色-爱因斯坦凝聚体中的拓扑激发。。。。

As another bold hypothesis, the quark is created by curling a train of longitudinal quantum waves, in which the quantum waves are connected end to end, forming a closed recurring wave ring, namely a complete chain running in a distorted manner that is similar to the human DNA spiral structure.

这里再次大胆假设，夸克是由一个段量子纵波卷曲而成，这列量子波首尾相连，形成一个闭合的循环波环，一个扭曲运转的完整链条，类似于人类DNA的螺旋结构。

Objective: To study the clinical significance of axis transverse foramen in the etiology of the vertebral artery insufficiency after cervical rotational movement.

目的 ：探讨枢椎横突孔结构在转头引起寰枢段椎动脉狭窄或闭塞的临床解剖学意义。

The structure of proximal femur of Uigur nationality has its own character.

维吾尔族正常成年人骨股上段结构有其特点，可为临床应用提供依据。

Chromatin loop A region of uncoiled DNA, usually about 200nm long, that extends out in a loop from the chromosome.

染色体环：一段解聚的 DNA 区域，通常长度为200nm ，是从染色体上伸长的环状结构。

Institute of Power and Electronic Technology, Naval University of EngineeringAbstract : Due to the existence of long unexcited primary between the import and export of linear induction motor with multi-segment primary, the static longitudinal end effect are different comparing with conventional LIM.

多段初级直线感应电动机(linear induction motor，LIM)由于在通电初级绕组外还存在较长的不通电初级铁心，因此这种结构的直线感应电动机的磁场边界条件与传统直线感应电动机不同，静态纵向边端效应对电机性能的影响也存在较大差异。

Therefore, we have developed a numerically effective algorithm based on periodic unit cell method proposed by Bohbot-Raviv and Wang.

所以有必要发展新的高效的SCMFT新方法来预测和确定嵌段共聚物微相分离的形态结构。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失