成环形

Based on the mechanical analysis of rotary pan, the axisymmetrical model and non-axisymmetrical one were proposed respectively by simplifying the effect of lacing wires on pan into ring distribution uniform load or force and were solved according to the flexure theory of thin plate with small deflection.

在分析工作状态下转子圆盘受力的基础上，将拉筋对圆盘的作用分别简化成环形均布载荷和集中载荷，建立承压圆盘的轴对称模型和非轴对称模型，并根据薄板的小挠度弯曲理论，对力学模型进行求解。

The hardware contains parallel lights insurement. Panoramic Annular lens. CMOS imaging device. 3-D control.The software achieves numerical integral, numerical differential coefficient, fast fourier transfer. smoothing process in the Matlab.

硬件主要由平行光管、全景环形成像镜头、CMOS成像器件、三维调节系统这么几部分组成，软件是以Matlab为平台实现了数字积分、数字微分、快速傅立叶变换、平滑处理等方面的工作。

Detailed description has been given individually to the abnormal colours, lineament and circular structure and image features on the multi-geographycal information composite image. We have studied the ore control effect of circular and lineament structure to the multimetal ore, and come to the point that the Xianghualing region is a complex ore control area by circular and lineament structure.Therefore, we build a remote sensing imag model for ore field in the region. Within the circular structure, the northwest lineament crosses the northweast lineament and forms frames that control the metal ore distribution. According to the features of the found deposits and their coherent image, we conclude that there are two symbols for ore looking.

对多源地学信息复合处理图像新发现的色异常、线性和环形构造的分布、影像特征做了较详细的叙述；并探讨了该区的环形和线性构造对多金属矿的控矿作用，认为香花岭地区是环形和线形构造的复合控矿，在此基础上建立了香花岭矿田遥感影像模式：在环形构造内，发育北西向和北东向线性构造组合，交叉成"井"字型格式，控制金属矿的分布。

Gabor-ring is often used in texture feature extraction, but it is based on the assumption that texture is narrowband signal and can not applied to most actual textured images that have more than one center frequency in power spectrum. To overcome the limitation of existing method, an improved method is proposed. According to this method, Gabor filters are constructed in accordance with the spectrum feature vector of texture, and a relaxation parameter is used to determine the effect of difference filters so as to integrate the frequencies and phases into the process of extraction.

Gabor环（即在频率域成环形分布的Gabor滤波器组）常被用于提取图像纹理特征，但它是以"纹理是窄带信号"为基础的，实际的纹理图像并不能很好地满足"窄带信号"的假设，用一个中心频率来描述一种纹理对能量集中在多个频率点的纹理图像往往不能取得理想的效果，而根据频谱特征值向量构造Gabor环的改进方法，通过松弛因子的加入改变不同滤波器的作用强度，综合考虑了多频率多相位对纹理特征提取的影响。

Results We discovered that under starvation conditions, the long, flexible rod cell of Cytophaga hutchinsonii would bend and turn into circular cell. The circular cell failed to produce carboxymethyl cellulase. Some of the circular cells might further wind around and turn into tiny spherical cells.

发现在饥饿状态下，长杆状菌体开始逐渐弯曲，菌体两端靠近成环形，环形菌体又进一步盘绕收缩成微小球形体，微小球形体在一定条件下能像生孢噬纤维菌的小孢囊一样萌发形成长杆状菌。

And local dark focal spots may be obtained, the focal spot may evolve into a circle, a two-peak spot, or a curve line, which indicates that the combination of nonspiral and spiral phase plates can be used to form novel focal spots.

随着相位片参数变化，焦斑可演化成环形焦斑、具有两个光强峰值的焦斑、或是曲线形焦斑，这些现象说明可以将螺旋和非螺旋两种相位片结合用来调节焦点光强分布，得到新型焦斑。标签相位片焦点移动焦点破裂光陷阱

In the presence of O〓, peroxyl radicals formed under neutral condition are either directly oxidized to non-aromatic acids, or forms aromatic intermediates, which are further oxidized to non-aromatic acids; peroxyl radicals formed under alkaline conditions are directly oxidized to non-aromatic acids.

有氧状态下的羟基自由基氧化体系中，过氧自由基在氧气的催化作用下既可开环形成有机酸，也可形成4-氯邻苯二酚和对苯二酚，进而氧化开环成有机酸，并最终矿化；碱性条件下的过氧自由基则直接开环降解。

Such scenic openings were designed simply as circles, squares or ovals or in more imaginative shapes like those of a lotus petal, garland or bay leaf.

这些窗子，有的设计成简单的圆形，正方形或椭圆形，有的就设计成较富想像力的形状，例如莲花花瓣形，花环形或桂叶形。

In the Pacific Ocean there are many coral atolls that are ring like islands.

在太平洋中，有许多如岛屿般成环形排列的环状珊瑚礁。

One of the most impressive photos in Natural Wonder shows birds against the background of several farmhouses, with a ladder leaning against a tree. The birds are guarding a circle of eggs.

在《自然的惊叹》中让人印象最深刻的那张照片展现了一群飞鸟在一排农屋和靠着梯子的树木的衬托下守护着围成环形的蛋。

It is also known as one of the most poisonous naturally occurring substances.

它也被称为一个最自然发生的有毒物质。

The greatest stress is found at the location on the cross section where V is the largest.

最大应力出现在横截面上V为最大的地方。