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三焦点
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  trifocal
     In order to avoid miscorrespondences on three uncalibrated images matching,the trifocal tensor is used in correspondence of tree trunks,and tree trunks lines could be fixed by lines transfer of the trifocal tensor.
     首先通过三焦点张量建立三张图像的关联关系,然后由两张图像上的树干线,通过张量的直线转移求得第三张图像上的树干对应位置。 这有效地解决了树木图像因拍照角度不同引起的树木在图像上位置的变换,以及遮挡等问题。
短句来源
     Matching of Tree Image Based on Trifocal Tensor
     基于三焦点张量的树木图像匹配
短句来源
     Methods The internal trifocal distractor was used to reconstruct the mandibular segmental defects of 4 canine model.
     方法使用内置式三焦点牵引器对4只成年犬下颌骨骨段缺损进行牵引成骨重建。
短句来源
     Conclusion: The technique of trifocal distraction osteogenesis may be an alternative way to repair the mandibular symphseal defects.
     结论:用可调式多平面牵张装置进行三焦点牵张成骨可以作为修复重建颏部骨缺损的一种选择手段。
短句来源
     Trifocal distraction osteogenesis for the repair of mandibular symphyseal defects in rhesus
     用三焦点牵张成骨技术修复重建颏部骨缺损的实验研究
短句来源
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  “三焦点”译为未确定词的双语例句
     Experimental Study of Mandibular Symphyseal Defects Reconstruction by Trifocal Distraction Osteogenesis
     应用三焦点牵张成骨整复颏部缺损的实验研究
短句来源
     To meet the growing need for flattened passband in a practical WDMsystem, three design methods, namely, the tapered output waveguide structure with air-slots, the three-focal-point method and the analytical method of spatial phase modulation, are introduced to achieve a passband-flattened diffraction grating device.
     针对实际光通信应用中对通带带宽的需求,本文提出了“结合空气槽的渐变输出波导结构方法”、“三焦点方法”及“显式公式空间相位调制法”三种使平面集成型衍射光栅波分复用器件获得平顶型频谱响应的优化设计方法。
短句来源
     Because of the complexity and the shelter in views,there are many miscorrespondences in tree images matching.
     在实际应用中由于自然环境的复杂或者遮挡等问题,使得树木图像容易产生误匹配,该文提出了基于三焦点张量解决在树木图像匹配中树木对应问题,这是进一步点对点匹配,计算树木空间位置的前题。
短句来源
     PURPOSE: The purpose of this study was to investigate the reconstruction of mandibular segmental defects bydistraction osteogenesis(DO) and the feasibility of dental implantation in regenerated bone.
     目的:探讨三焦点牵引成骨技术在下颌骨骨段缺损重建中的应用和在重建骨行种植义齿修复牙列缺失的可行性。
短句来源
     METHODS: Internal trifocaldistractors were used to reconstruct the mandibular segmental defects of 4 cases immediately after the tumors wereresected.
     方法:4例下颌体骨段切除患者,使用内置式三焦点牵引器同期行下颌骨缺损牵引成骨重建。
短句来源
  相似匹配句对
     Three.
     .
短句来源
     3) T.
     ()T.
短句来源
     FOCUS
     焦点
短句来源
     3.its pragmatic focus operator.
     、语用上焦点算子性。
短句来源
     Three kinds of method determining the centre or focus
     中心——焦点判别的个方法
短句来源
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  trifocal
The method provides an opportunity to design trifocal antenna systems with improved focusing properties.
      
Our analysis relies heavily on the use of the fundamental matrix which has been recently introduced (Faugeras et al, 1992) and on the properties of a special plane which we call the trifocal plane.
      
Lines and Points in Three Views and the Trifocal Tensor
      
This paper discusses the basic role of the trifocal tensor in scene reconstruction from three views.
      
In particular, the trifocal tensor may be computed by a linear algorithm from a set of 13 line correspondences in three views.
      
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This paper proposes a design procedure for a new type of zone lens which may have more than-one main fool, and the locations and efficiences of these fool can be determined flexibly by designer' s requests. This design method is based on the simulated annealing optimization and provides a mean for obtaining some particular optical field distribution and may be very useful for fabrication of special zone lens.

本文首次提出了一种新型的具有多重焦点的波带透镜概念及其设计方法.这类多焦点带透镜不同于菲涅耳波带片,不仅其焦点的个数和位置可以任意规定,而且各焦点的衍射效率和相对光强也可作人为选择.文中给出了一个各焦点衍射效率近似均等的三焦点波带透镜和一个具有三个等光强焦点的波带透镜的设计及其设计数据,并给出各个焦点的衍射效率、分辨率和各焦平面的相对光强分布曲线,这类新颖的多焦点波带透镜可提供某些特定的光场分布,而且具有性能稳定、微型化和可实际制作等特点,有着特殊的潜在的应用价值.

In this paper,we prove that the plane quadratic system has at most one limitcycle surrounding a 2nd-order weak focus, and that if the product of the second andthird focus value of the weak focus is positive definite, then the system has no limitcycle surrounding the 2nd-order weak focus.

本文证明了平面二次系统二阶细焦点外围至多存在一个极限环这一猜想,并证明了若第二、第三焦点量的乘积大于零,则在二阶细焦点外围不存在极限环.

A summary of recent achievements concerning the study of focus on the Chinese language is made in this essay. It consists of 4 parts: 1. The character of focus. As it is pointed out, that focus is mainly on expressing the speaker's attitude. It is different from another linguistic concept emphasis. 2. Focus and presupposition. The essay presents different interpretations of the relationship between focus, the corresponding presupposition and its background. 3. Focus on Pragmatics. Comments upon focus markers,...

A summary of recent achievements concerning the study of focus on the Chinese language is made in this essay. It consists of 4 parts: 1. The character of focus. As it is pointed out, that focus is mainly on expressing the speaker's attitude. It is different from another linguistic concept emphasis. 2. Focus and presupposition. The essay presents different interpretations of the relationship between focus, the corresponding presupposition and its background. 3. Focus on Pragmatics. Comments upon focus markers, sentence order and syntactic cases are made in the essay. 4. The test of focus. Some experimental methods for focus by some scholars are mentioned in the essay. 5. Remaining arguments. To make a further study of focus of simple sentences, it is necessary to study the focus of compound sentences.

对近年来汉语语法界关于焦点研究的主要成果作了概括 :一、焦点的性质 ,指出焦点主要表现说话人的主观态度 ,提出区分焦点和表达重点两个概念 ;二、焦点和预设 ,归纳了对焦点及其对应成分预设、背景关系的不同认识 ;三、焦点的语用形式 ,对标记词、语序和句法格式作了评说 ;四、焦点的确定 ,概述了有些学者提出的测试方法。余论中指出在深入研究小句焦点的同时 ,要进一步研究复句的焦点

 
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