查询词典 mechanism

Through simulation of the real process of thomcolumbar burst fracture and use of modem dynamics techniques, the present study was (1) to investigate the kinetic relationship between structural damage and impact energy absorption and dynamics mechanism of thoracolumbar burst fracture by quantitative analysis of various injured segments;(2) to explore the instability mechanism of L1 vertebral burst fracture and its injury threshold by three-dimensional analysis of the injured segment with stereophotogrammetry in combination of transient physical parameters, anatomy and image;(3) to explore the corresponding relationships between impact energy, geometry parameters and biomechanics by geometry and biomechanical analysis of thoracolumbar burst fracture, which may provide an objective standard for evaluation of spinal injury severity and experimental evidence for adoption of biomechanical treatment in clinic;(4) to evaluate the fixation effect of different instruments and the effect of intervertebral bone graft on segment fixation by analysis of the threedimensional stability of different internal fixation instruments and their decompression of the spinal canal, which may provide experimental evidence for therapeutical selection for thoracolumbar burst fracture in future; and finally to investigate the effect of various instrument fixation on dynamical characteristics by comparison and quantitative analysis of frequency and amplitude responses, which may provide certain theories and experimental evidence for application of vibration test to judge the stability of the spine.

本研究从胸腰段脊柱爆裂骨折发生的实际过程出发，以现代动力学检测及计算机多通道高性能数据采集分析系统等高新技术为基础，实时量化分析损伤节段的工程参数，揭示了结构破坏与能量吸收的变化规律，探讨了胸腰段脊柱爆裂骨折的瞬态损伤机制；利用三维立体摄像技术，对不同损伤程度的节段进行三维运动分析，结合瞬态物理参数、影像学和病理解剖，明确了〓椎体爆裂骨折的失稳机制及损伤阈值；通过对胸腰椎爆裂骨折的几何学变化及生物力学分析，明确了撞击能量与几何参数、几何参数与生物力学的相应关系，为评判脊柱损伤程度提供了客观标准，为治疗中采取适宜的生物力学方法提供了实验依据；通过对比分析不同内固定器械的三维稳定性和对椎管的减压作用，评价不同器械的复位固定作用，同时比较椎体间植骨对节段固定作用的影响，为今后临床胸腰段脊柱爆裂骨折的治疗选择提供依据；利用振动测试与分析技术，比较及量化分析了不同致伤状况的频幅响应特征，比较分析了各种器械固定对动力学特性的影响，为今后临床建立基于振动测试与分析技术判断脊柱稳定性的诊断方法，提供了一定的理论和实验依据。

So in this work, we focused no the following aspects: 1 The ecological effect of ephemeral resource on the rodent community; 2 The ecological isolation and coexistence mechanism for the sympatric species; 3 The effect of ecological process in a regional scale on the specie richness to investigate the community Patterns and limitation Mechanism of the desert rodents in this region, the main results and conclusions were as follows

为此，本工作立足于以下方面：（1）限制性资源对荒漠啮齿类动物群落的生态效应；（2）同域物种的生态分离与共存机制；（3）局域尺度的群落过程对区域物种丰富度的影响；对该地区的荒漠啮齿动物群落格局及其相关的制约机制进行了研究。主要研究结果和结论如下

The results show that the TCHI dictionary mechanism can improve speed and achieve more efficiency than FCHI,DCHI and four;character-hash-index in Chinese dictionary word segmentation mechanism.

理论分析和真实语料仿真均证明了三字哈希索引机制与不同字数的其他索引机制相比，具有更好的分词效率。

A wind- and motor-powered land vehicle with a fore-and-aft longitudinal axis comprising a body supported by wheels, at least one of said wheels fixed to rotate in a plane parallel to the fore-and-aft axis of said vehicle, an airfoil system comprised of two vertically extending airfoils rigidly mounted on said body in an arrangement having bilateral symmetry about a vertical plane through said fore-and-aft axis, said airfoil system providing a forward propelling force of said vehicle when the airfoil system is subjected to certain cross wind conditions, and self-contained motor propulsion means on said vehicle for providing acceleration from a stationary position and for propelling the vehicle either independently or in combination with propelling forces generated by wind action on said airfoil system, each airfoil having a plurality of airfoil sections telescopically fitted together, the lower airfoil section being rigidly mounted in fixed relationship to said body, said airfoil system including a retracting mechanism for lowering upper airfoil sections of said airfoil system when desired and for subsequently extending said airfoil system, said retracting mechanism including a plurality of linkages interconnecting said sections and an actuator means operatively connected between said body and to said linkages for lowering and extending each airfoil, and an intermediate airfoil extending between the upper sections of each of said airfoils so as to provide an inverted U-shaped airfoil.

风力和电动机驱动的陆地车辆与前列和尾部长轴组成的一个机构的支持，车轮，至少有一说，车轮固定在一个旋转平面平行的前列和前后轴的说，车辆，翼型系统组成的两个垂直扩展翼型硬性安装在说，机构在安排后，双边对称约一垂直面说，通过国内外和前后轴，表示翼型系统提供了一个向前推进的力量说，车辆时，翼型系统是受到某些横风条件下，和自我载电机推进的手段就表示，车辆提供加速从一个固定的立场和为推进车辆单独或结合，与推进力量所产生的风的行动表示翼型系统，每个机翼有一个多元化翼型第telescopically装在一起，较低的翼型节被硬性安装在固定的关系，说身体，说翼型系统包括一个撤消的机制，降低上翼型章节说，翼型系统时，理想的和其后再将说，翼型制度，说收回机制包括多元化的联系互连说，部分和一个致动器的手段手术之间的连接说，身体和说，联系降低，并延长每翼型，及一个中间翼型延长之间的路段上的每说翼型，以便提供一个倒U -形翼型。

The tetrasyllabic words have close connection with the language system, and especially the symmetric mechanism and the analogical mechanism is decisive for its origination and development.

四音格现象的存在与语言自身的机制有着密切关系，特别是类推机制、对称机制与四音格词的产生和发展关系更为密切。

In the aspect of the recognition, the recognition of the essence and ultimate purpose of the ideological and politucal education, the human essence and psychological development are the key points. As to the mechanism, the most important is to form the thoro and omni-directional mechanism of the particification of the whole staff, at the same time, to develop the new resources of the ideological and political education, to improve the qualities and abilities of the educators, especially their scientific, humanist and innovative spirits.

在思想认识方面，对思想政治教育本质，根本目的认识，对人的本质和心理发展的认识是关键；在机制保障方面，最重要的是形成全员育人，全程、全方位育人的机制，与此同时，要不断开发思想政治教育的新资源，不断提高教育者的素质和能力，特别是他们的科学精神、人文精神和创新精神。

However, this dissertation is not specially on how to establish China's market mechanism of stock market, it study on how to establish the market mechanism on which the tock market works in corporate governance.

但本文又不是专门讨论如何建立我国股票市场的市场机制，而是只探讨如何建立与公司治理机制有关的股票市场的市场机制，这与股票市场发展的首要目标是一致的、无冲突的。

By using multi-dimensional nuclear magnetic resonance method we have studied the folding mechanism of staphylococcal nuclease in vitro; the tertiary interactions for folding of SNase fragments into native-like conformation; the interaction between SNase N- and C-terminal subunits; the relationship of enzyme activity with folding and dynamic states of SNase; the structural properties of enzyme protein while exert its function. We have studied the internal motions of thermophilic Archaea protein Ssh10b and mechanism of its heat-resistance using the NMR 1H-15N relaxation and H/D exchange methods. We have determined the 3D solution structure of human translationally controlled tumor protein TCTP and the Ca2+-binding site; determined the 3D crystal structure of human mitoNEET, a novel protein from distinct groups of iron-sulfur proteins; determined the 3D solution structure of a novel chromatin protein Cren7. Determination of SNase-DNA and Archaea protein-DNA complex structures are in progress.

运用异核多维核磁共振方法研究了金黄色葡萄球菌酶体外折叠机制，酶蛋白片段体外折叠成类天然溶液三维构象的三级相互作用力，酶蛋白亚基间的相互作用，酶蛋白的折叠以及内运动状态与酶活力的关系，酶蛋白发挥功能时的结构特性；运用NMR的1H-15N 驰豫和H/D交换方法研究了嗜热古菌蛋白质Ssh10b双体结构内运动特性，热稳定性机制；确定了人翻译控制的肿瘤蛋白TCTP蛋白的溶液三维结构及其钙离子的结合部位；确定了一类新的铁硫蛋白家族蛋白人线粒体膜上mitoNEET蛋白的晶体结构；确定了一个新型的染色质蛋白Cren7的溶液三维结构；正在研究金黄色葡萄球菌酶及嗜热古菌蛋白质与DNA复合体的溶液三维结构。

In view of the concrete structure of double front axles steering, and base on related automobile theories and the connecting rod mechanism kinematics, this thesis theoretically analysis the multi-axle steering trapezia and the steering rotary arm mechanism, and establishes an integral space mathematical model of the steering system on the basis of previous achievement.

本文针对双前桥转向汽车起重机的具体结构，利用相关汽车理论和连杆机构运动学的知识，在消化、吸收、归纳、总结前人的成果上，系统、全面地对多桥转向汽车的转向梯形、转向摇臂机构进行理论分析，建立其转向系统的整体空间数学模型。

This dissertation provides that the financial behavior mechanism is a special economic running mechanism in terms of a complete organism with triadic reciprocal causation and interplay among financial behavior selection, subject and environment, which has the control and readjustment function to the financial activity and even the total social economic activity. Chapter One: Introduction. This chapter provides the research objects, research methods and the structure of this dissertation.

因而，深入剖析财务行为的本质，全面揭示财务行为主体、理财环境与财务行为选择的内在联系，对理性选择研究范式进行彻底革命，就成为当前财务行为理论以至整个财务理论研究所必须解决的根本问题之一。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。