已经灭绝了6500万年之久的菊石是一种带有多室螺旋状外壳的海洋头足类动物，其小室之间的阻隔即缝合线就是一种复杂的分形曲线。
Extinct for 65 million years, ammonites were Marine cephalopods that built chambered spiral shells. The walls between these Chambers, called sutures, were complex fractal curves.
最多才多艺形状是一个简单的直角三角形，使提出的两种截然相反的角落折叠在一起的平方的一半。
The most versatile shape is a simple right triangle, made by bringing two opposite corners together to fold the square in half.
在此基础上提出了一种新的无线信道模型；结合分形插值方法，对多径衰落信号的重构进行了研究。
Then a novel channel model is proposed and fractal interpolation is applied to reconstruct the signals.
本文对上海一座具有悬臂铰节点的多联曲线连续箱形梁桥的可行性方案提出了两种比较实用的分析方法。
In connection with a proposed multiple curved continuous box girder bridge with cantilever hinged joints in Shanghai, two practical and efficient methods of analysis have been developed.
薄壁多室箱形截面是机械结构中常见的一种结构形式。
Thin wall box shape section is a kind of structure generally adopted for machines.
将SAR图像的特点与分形理论相结合，提出了一种新的基于区域自选的多尺度分形维数边缘检测方法。
With the combination of SAR image features and fractal theory, a new method of edge detection by calculating the fractal dimension multiscalely is proposed.
基于旋转机制，提出了一种具有负泊松比效应的、由部分内凹以及部分规则六边形组成的二维多胞材料力学模型；
A mechanical model of two-dimensional cellular materials with negative Poisson's ratio, composed of partly re-entrant and partly regular hexagons, was proposed based on rotation mechanism.
本文从分数布朗随机场模型的描述出发，提出并构造了一种广义多尺度分形参数，用于描述图像的纹理信息。
In this paper, a kind of generalized multiscale fractal parameter is proposed and constructed for the description of image textures, which is based on fractional Brownian random field model.
阐述了图像分形维和多尺度分形特征的概念，提出了一种多尺度分形目标检测方法。
This paper expatiates the notion of image fractal dimension and multi-scale fractal feature, proposes a ship target detection method based on multi-scale fractal feature.
本文将分形理论引入多径衰落信道的描述，提出了一种利用分形滤波进行最小均方误差意义下信道参数估计的方法。
The fractal theory was applied to describe multipath fading channels, and a novel channel estimation scheme using fractal filter in the sense of minimum mean square error (MMSE) was presented.
进一步，基于广义多尺度分形参数，本文提出了一种具有抗噪性能的稳健的目标提取算法，并用于海上小目标的提取。
Furthermore, an robust algorithm which is based on generalized multiscale fractal parameter is proposed for the small target extraction on ocean with good noise immunity.
本文提出了一种适用于多连通的多边形区域的三角剖分和非连通的受限数据的三角剖分算法。
The paper presents a new triangulation method suitable for both multiple connected polygonal domains and unconnected constrained data.
针对高陡度保形光学镜面的检测问题，提出了一种基于多段拼接的坐标测量方法。
A new coordinate measurement method with profile matching technique was put forward for steep conformal optics.
根据使用经验，从机械设备维护、厚度控制和板形控制三个方面对三种不同类型的不锈钢多辊冷轧机进行了比较，指出设计和使用上的不足之处，并给出了一些改进建议。
Based on practical experience, mechanical equipment maintenance, AGC and AFC of three kinds of mills are compared. Deficiencies of design and application, as well as some Suggestions are listed.
基于区域递归分解算法是一种有效的四边形网格生成算法，能较好地运用于复杂的单连通和多连通图形区域，自动化程度高。
This paper presents an efficient algorithm for creating automatic quadrilateral mesh based on a recursive decomposition domain of quadrilateral elements.
为了解决起重机箱形主梁优化设计中的多变量、多约束问题，提出了一种新的基于混沌序列的粒子群优化算法。
To solve the problems of the multi-variables and multi-constraints in crane main girder optimization design, the paper proposes a new particle swarm optimization algorithm based on chaos series.
他们从老玩的北方那里，听到一种风的低低的哀叫声，亨利叔叔和多萝茜在风暴到来之前，看见那里的草，作着波浪形的起伏。
From the far north they heard a low wail of the wind, and Uncle Henry and Dorothy could see where the long grass bowed in waves before the coming storm.
他们从老玩的北方那里，听到一种风的低低的哀叫声，亨利叔叔和多萝茜在风暴到来之前，看见那里的草，作着波浪形的起伏。
From the far north they heard a low wail of the wind, and Uncle Henry and Dorothy could see where the long grass bowed in waves before the coming storm.
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