查询词典 three-fourths

［Objective］To sum up the experience of wearing the halo pelvic and level traction costoplasty to treat 35 cases of severe scoliosis combined with collapsed chest.［Methods］When scoliosis of patients were corrected to a certain degree after three weeks of halo pelvic distraction, the most serious collapsed ribs of concave side of the curve underwent a transverse incision the cross ribs. A special rib bender was used to bend the exposed 3 to 6 ribs. The bent ribs were pulled up by double-stranded 10# thick silk which was extended out through the skin and fixed in the upright post of the instrument of Halo pelvic distraction with rubber membranes.［Results］Thirty-three in 35 patients underwent costoplasty.

［目的］介绍35例重度脊柱侧弯合并严重胸廓塌陷的病例，在颅盆牵引的过程中，同时采用肋骨成形术加水平牵引治疗胸廓塌陷［方法］颅盆牵引3周后，脊柱侧弯矫正到定程度时，在侧弯凹侧肋骨塌陷最重的部位，与肋骨交叉作横切口，暴露3～6条肋骨，用特制的肋骨折弯器将肋骨折弯变圆，用10号双股粗丝线将每条肋骨提起，自皮肤穿出通过橡皮膜在颅盆装置的立柱上作牵引。

3When mark price increase, the advertising cost, the optimal order and the lower bound of total profits increase in three cases. In the S shaped function, the advertising cost in three case decreases concave downwards, and in concave shaped function, the advertising cost increases concave upwards.

3当成本加成率m递增时，在三个个案中，广告支出、订购量以及利润下限都向上递增，在S型函数中，三个个案下的广告支出效果为凹面向下，而凹型函数中，广告支出效果则为凹面向上。

Three LEDs biology light sources with different intensity for cell or tissue culture have been developed in the third part of this thesis. A concave lens to expand the beams of light, to focus the rays of light and an array of LEDs being set in the sphere connected with Fresnel lenses are three newly-designed in our systems.

实际测试数据表明：低强度光源输出的辐射照度范围为0.0021—0.9961(W／m~2)，在直径20mm的照射面积内所测辐射照度的标准偏差为0.02W／m~2(n=40，Mean：0.71 W／m~2)；中等强度光源输出的辐射照度范围为0.3579—11.2286(W／m~2)，在直径30mm照射面积内所测辐射照度的标准偏差为0.02W／m~2n=60，Mean：6.37 W／m~2；较高强度光源输出的辐射照度范围为17—110(W／m~2，在直径40mm照射面积内所测辐射照度的标准偏差为0.02W／m~2(n=80，Mean：71.54 W／m~2)。

In the first three chapters, I provide a critical review of three traditional approaches to predication in turn: the realist, the nominalist, and the conceptualist approach.

前三章我将批评三种对表述问题的传统进路：实在论、惟名论、以及概念论。

There are three features can be summed up from it: Firstly, all of the three chapters follow the tradition style. Secondly, the topic of each piece originates from the abundant folk music collection. Thirdly, concertina, the classic folk musical instrument, is used in the works.

作品在材料使用上具有一定的层次性与逻辑性，结构布局和创作细节上都比较详尽的体现出作曲家传统创作的特点：1、作品的三个乐章都具有传统结构的特征；2、每个音乐主题的创作，都呈现出俄罗斯丰富的传统民间音乐素材；3、作品的创作手法赋予了巴扬手风琴这一俄罗斯传统民间乐器发挥和表现的空间。

The structures and properties of nine derivatives, which are formed between two or three cations and the three active sites of the most stable glycine conformer, have been probed; And the binding strength between the different active sites of glycine and different cations have been compared in BSSE method.33. The activation parameters, coupling matrix element and so forth of Fe4+Gly system have been investigated with the hereto-exchange model and calculation scheme for weak coupling system.

鉴于一个甘氨酸分子就具备三个活性位和人体中大量阳离子的存在，在上述考察了甘氨酸分子的某一活性位结合了一阳离子之后，进一步探讨了其余两个活性位再与一个甚至两个阳离子继续作用所形成的九种衍生物的结构和性质。

Considering the three parameters Weibull distribution which is more congruous to fact than the two parameters Weibull distribution in dealing with the electric intension data, the method of maximum likelihood estimation and the method of the two binomial regression is applied in estimating the three parameters Weibull distribution in this paper.

鉴于三参数Weibull分布在处理电气强度数据时比二参数更符合实际，本文介绍利用二项式回归法和极大似然法对三参数Weibull分布参数进行点估计的方法。

Chapter 1 briefs the relation between invariance and computer vision and summarizes the research and application of invariance in computer vision. Chapter 2 first derives the transformations of three camera models, then makes the correpondences between the models and three typical geometrical transformation groups by analysing the transformations respectively. The correspondences supply the theoretical basis for applying geometrical invariants to resolve the problems of computer vision. In Chapter 3, we describe the geometrical invariant theory and prove some geometrical invariants of coplanar points, lines or conics by algebraic method. In order to use the invariants of conic pairs to describe general 2D shapes, we discuss the perspectively invariant representation of planar curves using conies in detail. A system consisted of two TMS320C25 and based on moment invariants is introduced in Chapter 5. The system can recognize more than 30 different shapes of object model or more than 10 plane models with similar shape in real time.

第一章简述了不变性与计算机视觉的关系，以及计算机视觉中的不变性研究和应用概况；第二章推导了计算机视觉中常用三种投影模型的变换关系，通过对这三种变换关系的分析，分别建立了这三种投影模型和几何学中的三种变换群之间的一一对应关系，为几何不变性在计算机视觉中的应用提供了理论基础；在第三章中，我们介绍了几何不变性的理论，并且用代数方法证明了共面点、直线、二次曲线的几何不变量和射影不变量；为了把二次曲线的不变量用于一般二维形状描述，在第四章中我们详细地讨论了用二次曲线实现一般平面曲线的透视不变性表示的方法；第五章介绍了用两片TMS320C25构成的、基于不变矩形特征的运动目标实时识别系统。

The tomatoes" image was analyzed, their surface features were extracted, and each tomato was discriminated using the method of particle segmentation by watersheds; a template based profile emendation method is advanced in which three typical profiles of tomato images are adopted; the coordinates of tomato"s central point are obtained; three constraint conditions are advanced and bias ranges are properly selected to match feature points in conjugate images.

对番茄图像进行分析，提取番茄的轮廓特征，采用分水岭变换法实现多果分割；提出三个典型的番茄图像轮廓为模板实现轮廓信息的补全和修复；提取番茄的形心坐标。

In the test of weak-form efficient hypothesis, this thesis used auto regression, auto correlation function and unit root three models, and got the basically same results. In the test of semistrong-form efficient hypothesis, this thesis used market model, index return model and constant mean return model three ways to estimate the normal return when making use of event study, and the results were also basically same.

其中，为求全面和比较，在对弱势有效市场的假说的检验部分，本文运用了自回归检验、自相关函数检验和单位根检验三种计量模型，检验结果基本一致；在对半强势有效市场假说的检验部分，本文运用了事件研究法，并在估计正常收益率时使用了市场模型、指数收益模型以及均值模型三种方法，估计结果也相对一致。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。