查询词典 feature-length

There are three main features that characterize beautiful faces: the geometric feature of bilateral symmetry, the mathematical feature of averageness, and the biological feature of secondary sexual characteristics.

美丽的面孔具有三个主要特征：左右对称的几何特征、平均化的数学特征和第二性征的生物特征，这些都表明他们在基因与发展上更健康。

By projecting 3D models into 1D smooth principal curves, equally segmentation and sampling along the length of curve are implemented to extract shape feature vectors, then one can retrieve 3D model according to the matching result of shape feature vectors of 1D manifold.

本文将三维网格模型，投影为三维的光顺主曲线；通过对主曲线沿弧长方向的均匀分割采样，提取主曲线的空间位置和姿态等形状特征；最后通过形状描述向量的比较实现了对应的三维模型检索。

A new method of linear feature detection based on Beamlet transform is proposed, which can detect lines with any orientation, location and length. The integrity and accuracy of linear feature are kept.

提出了一种基于Beamlet变换的新型特征检测算法，可检测出任何方向、任何位置、任何长度的线性信息，且线性特征的完整性和准确性都得到了很好的保持。

The paper sees Horton code as a primary characteristic value and generalizing condition of the river network, and selects, simplifies and generalizes river based on scale of before and after generalization,, The main contents of paper include:(1)Reviews generalization concept, arithmetic operators, methods, influence factor and frame of map generalization and design, analyze core theory of feature —oriented map generalization, discuss the main context and applicable method of river feature generalization(2) Summarizes natural form and spatial configuration characteristic of the river network, and describe the river network using digraph Paper mostly researches tree —like river, identifies the direction of river based on the angle of the main and secondary reach, and identifies the main river based on most length and predominant continuation of the flow direction along the major channel , then receives the grade of river by recursion and structuralize river network, builds hiberarchy rank system of river based on Horton coding(3)Designs the model of river network based on Horton code, and organizes the data of node, branch and river.

本论文把Horton编码作为水系网的一个主要特征值并以此作为综合条件，并根据综合前后的比例尺对水系网进行选取、化简和概括。论文的主要工作包括：(1)总结地图综合的概念、算子分解、实现方法、主要影响因素和总体设计框架，分析面向地理特征的制图综合的核心理论支撑，在此基础上讨论水系专题要素综合的主要内容和综合适用的方法。(2)总结水系网的自然形态和空间结构特征，用图论对水系网进行描述。以树状水系作为主要研究对象，依据树状水系的主支流交汇关系确定水系流向，依据水系中主流的长度最长和主流保持原有的流向趋势确定主流，按此递归得到河流的不同级别，对基于河段组织的水系网结构化，自动建立水系的Horton编码。(3)设计基于Horton码的水系网模型，对结点、河段、河流和河系的数据进行有效的组织。

It analyzes its feature of using electricity from different aspects: electricity for daily use road construction、street and landscape lighting, and also gives the conclusion that box-typed transformer substation taking the place of old one is the effective way to deal with the supplying power for modern housing district through the analysis to the substation and the feature of new box-typed transformer substation, It also tells the meaning of choosing the correct section and length of low-tension wire and gives suggestions that some ideas about present design standard should be improved as the development of society by comparing the analysis to distribution system and comparison with the relative countries and areas.

阐述了现代住宅小区供电规划的依据，通过从生活用电、公建用电、道路照明及景观照明用电方面分析现代住宅小区用电的特点；通过对住宅小区内变电所的分析及现在新型箱式变电站的特点，得出新型箱式变电站取代老式变电所是解决住宅小区供电的有效措施；正确选择住宅小区内低压导线的截面和长度的意义；对室内配电系统的分析及于相关国家和地区的比较，目前的设计标准有些条款随着社会的发展应该及时完善的建议。

Next, my brief is onefold next simple agenda this afternoon, the begin in the conference piece, we go to Wuhan please east the lake is new and high director of act vigorously of technical development Chen Hua, the 2nd we make a game, the 3rd we kiss the mom in A senior manager Wang Yi is done " long end of many a little makes a mickle is king " the theme makes a speech, the 3rd station is full length, the person that we asked forum rejects natant fish, station feature-length the 3rd link, we can have give 4 honored guests please, to each stationmaster live and develop, the 5th part has a technology piece, the last fortune, we asked La Hai to achieve cast Dr. Liming.

接下来，我简单一下今天下午的简单的议程，在会议的开场篇，我们请到武汉东湖高新技术开发区陈华奋主任，第二个我们做一个游戏，第三个我们亲到阿里妈妈资深经理汪毅做《聚沙成塔长尾为王》的主题演讲，第三个站长篇，我们请到了论坛者拒绝游泳的鱼，站长篇的第三个环节，我们会有请出四位嘉宾，到各位站长的生存和发展，第五部分有一个技术篇，最后一个财富，我们请到了蓝海创投李明博士。

The chloroform phase was isolated into 7 phases by column chromatograpathy, and the bioassy showed that the 1 phase has strong inhibitory effect, was 91.01% on Abutilon theophrasti M., root length, 51.35%、63.93%on Echinochloa crusgalli L, seedling length and root length, and the Amaranthus retroflexux L.,germination rate is 0, the secondly was 2 phase and 5 phas, and next we continued iaolated these two phases.

用硅胶柱对氯仿组分进行分离得到7个组分，生物测定表明组分1化感作用最强，对苘麻根长抑制率为91.01%，对稗草芽长和根长的抑制率分别为51.35%、63.93%，反枝苋的发芽率为0；其次是组分2和组分5，由于组分2的含量相对较少，对组分1和组分5继续分离。

The design of four-mirror anastigmat was analyzed, then a system with effective focal length of 1 200 mm and field of view of 0.8°×0.8° was designed , total length and f-number are 300 mm and F/6,respectively.The system has advantages of long focal length, relative short physical size and excellent ability in restraining stray lights.

分析了离轴四反的设计步骤，设计了一个焦距为1 200 mm，视场为0.8°×0.8°，相对孔径为F/6的光学系统，系统总长只有300 mm，并达到很好的光学性能，具有长焦距、小尺寸、良好的杂散光抑制能力等特点。

The purpose of this study was to describe and compare selected temporal-distance gait measures, i.e., the velocity, cadence, stride length to lower-extremity length ratio, and stride length differential, among clients with spastic hemiplegia, spastic diplegia and athetoid quadriplegia.

本研究之目的在比较痉挛型半身麻痹、痉挛型双边麻痹和徐动型四肢麻痹脑性麻痹患者的部份时间和空间步态参数：包括步行速度、每秒步数、步长、和左右脚的步长差。

As the track space increasing, the holding power which flexible holding parts act on sugarcane is dropping off. As the canvas layers and length of flexible holding part increasing, the track space is also increased when flexible holding parts act on sugarcane same holding power. As the length of flexible holding part increasing, the rate of slope of holding power following the track space to change would be decreased, so holding power would vary slowly. The holding power has a better linear relationship with the track space. Holding sugarcane stalk on knot or not on knot, sugarcane stalk having leaves or without leaves, the holding power would have not significant difference. Considering the structure of device and stress of sugarcane, 4-layers canvas conveyer belt was used as flexible holding part, while its length is 120mm, 160mm, or 200mm, the corresponding maximum track space is 135mm, 183mm, or 235mm. Experimental investigation of sugarcane windrowing was done on the arc-track-type flexible holding and conveying test mechanism.

随着轨道间距的增大，柔性夹持元件施加给甘蔗的夹持力逐渐减少；施加给甘蔗相同的夹持力，随着柔性夹持元件帆布帘层数和长度的增加，对应的轨道间距增加；随着柔性夹持元件长度的增大，柔性夹持元件施加给甘蔗的夹持力随轨道间距变化的斜率减小，夹持力大小的变化越缓慢；柔性夹持元件提供的夹持力与轨道间距均呈线性关系；柔性夹持元件夹在甘蔗节上还是不夹在节上，甘蔗有叶还是无叶，其施加给甘蔗的夹持力无显著差异；从夹持输送装置结构以及甘蔗的受力情况来考虑，选择4层帆布帘输送带作为柔性夹持元件更能平稳、柔和地夹持输送甘蔗，4层帆布帘120mm、160mm、200mm长的柔性夹持元件夹持甘蔗所需最大轨道间距为135mm 、183mm、235mm。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。