小圆

The best thing would be a handle that for groundstrokes had a large circumference at the forefinger, and for serves, a small circumference at the forefinger when you choke down: i.e. a coke-bottle-shaped grip, or rounding off the bevels about 4 cm up the handle to give a tapering smaller circumference at that spot.

最好是有一款手柄在击落地球时食指处有大的周长，而在发球时，你往下握一点，食指处有小的周长：就像可口可乐瓶身那种形状的拍柄，或是在拍柄上4厘米处把斜面削圆，在那形成一个更小圆周的锥形。

The optimization algorithms are commonly used to approach the minima of the roundness objective functions through iteration when a microcomputer is applied to assess roundness errors by minimum zone, minimum circumscribed circle, and maximum inscribed circle methods.

引言在用计算机求最小区域、最小外接圆和最大内切圆评定法求圆度误差时，广泛采用最优化算法，通过迭代去逼近目标函数的极小值。

In this paper, the method of small parameter is used to discuss the problems of stress concenration in the neighborhood of a concentrated load or a circular hole on a shallow shell of elliptic paraboloid.

本文采用小参数解法讨论了椭圆抛物面扁壳在集中荷载和圆孔附近的应力集中问题。所取的小参数为ε＝／这里Kx和Ky是沿x和y方向的曲率）。

The CC MRI findings are characterized mainly by:(1)frequently-encountered multiple circular foci during the cysticercus survival:small excentric spotty images of the mural cysticercus scolex :slightly high signs on T1WI and middle-lower signs on T2WI;lower signs on T1WI and high signs on T2WI of the capsular liquid;lower signs of the cerebrospinal fluid but relatively high signs of the capsular liquid on FLAIR;and unremarkable peripheral edema;(2)scolex disappearance,enlarged capsular cavity and remarkable peripheral edema during cysticercus degeneration and necrosis;(3)lower signs on T1WI and T2WI and peripheral edema disappearance after the focal calcification;(4)findings shown by the enhanced scanning:strengthened (24/36) or non-strengthened (12/36) cyst-wall circular images;strengthened (22/36) or non-strengthened (14/36) small intracapsular spotty images;(5)cerebral-ventricular type often occurring in the third and fourth ventricles:one case in the third ventricle (1/36) and three cases in the fourth ventricle (3/36),all of suffered from obstructive hydrocephalus;(6)hydrocephalus caused by arachnoid adhesion (2/36) in meningeal type.

结果 脑实质型18例，脑室型4例，脑膜型3例，混合型11例，主要MRI特点：(1)囊虫存活期，病灶呈圆型，多发常见，附壁囊虫头节呈偏心型小点状影，T1WI呈略高信号，T2WI呈中低信号；囊液T1WI呈低信号，T2WI呈高信号；在FLAIR上脑脊液呈低信号，而囊液呈相对高信号；周围水肿不明显。(2)囊虫退变坏死期，头节消失，囊腔扩大，周围水肿明显。(3)病灶钙化后，T1WI及T2WI均呈低信号，周围水肿消失。(4)增强扫描表现为：囊壁环状增强(24/36)，或不增强(12/36)；囊内小点状影增强(22/36)，或不增强(14/36)。(5)脑室型：常发生于第三、四脑室，其中第三脑室1例(1/36)，第四脑室3例(3/36)，均引起阻塞性脑积水。(6)脑膜型：因蛛网膜粘连，而引起脑积水(2/36)。

A set of complex Morlet wavelet are applied on projection slice of each direction to decompose each projection into several frequency channels,the average and variance extracted are computed in each frequency channel,and then linear regression model is employed to computer realationship feature between frequency channels.1-D DFT is applied to features and the amplitudes of Fourier coefficient are selected as features,then the extracted features are rotation invariant.

该算法是将一定大小的图像进行二维傅里叶变换；其次在变换后的图像中央选择一个圆盘区域，并在方向［0°，180°］内进行等间隔角度频率抽样，实现方向分解，使用一组复Morlet小波对每个方向上的映射切片进行小波变换，从而实现多通道频率分解；在各个频率通道中计算均值和方差作为特征，并利用线性回归模型计算频率通道之间的关系特征；将特征沿方向进行一维傅里叶变换并取其幅值，从而得到旋转不变性特征。

Rod green brown or celadon, flowing without wool, have cinnamon close and round skin hole, wintry bud is oblate and cone-shaped, black or black Brown, armpit of gemmule only leaf, have bud like the scales of a fish.

小枝绿褐或灰绿色，平滑无毛，有黄褐色密而圆的皮孔，冬芽扁圆锥形，黑或黑褐色，小芽单生叶腋，具芽鳞。

Square dot 5% point targejia, in the four corners phase business card printing and membership card making pressure, 5% point to expand capacity, on the transition from the hiberarchy, 5% point form a fairly obvious dot-jump; circular to about 70% to produce himself, then also imprint-jump, just look at the level of the jump, we need it to be put off; chain-shaped dot is divided into two time point respectively at 25% and 75% of the two places at once, each producing a smaller level.

方不神网不背在5不败不背处四角相搭，在制卡和会员卡制息不张力功用下，5不败不背扩不小量最不小，从条理过渡上看，5不败不背处不神不败一不主较为澄辉的级跳；圆不神网不背给到约70%爆发搭边，这时同样会爆发压印级跳，只是在条理上看，它的级跳处向后提后；链不神网不背不合两不主搭角，不合别在25%和75%两处，各爆发一不主小一些的级跳。

The modulation of cross section is obviously,the intensity of it is smaller as the circular aperture is bigger and the intensity is bigger as the circular aperture is smaller.

平顶高斯光束经过圆孔衍射，孔径大时光强在横截面调制越厉害，但是强度小；孔径小时光强在横截面调制相对小，但是光强度相对大。

Main products handle the ball, handle sets, has a long handle sets, handle rod, oval handles, rotating handle, surface rotating handles, small rotating handle, can handle security pack, tight set of adjustable handles, small ripple hand wheel, small hand wheel, Chrome hand wheel, milling machine hand wheel, a round flange hand wheel, back corrugated hand wheel, the corrugated hand wheel, double the rate of the hand wheel, double-handle hand wheel, disc hand wheel, hands, hands Cross, Star handle, embossed handle, the handle of bellows, Wu Jiaoxing-shaped handles, butterfly handle, 1.30 Arrow hands, T-shaped handle, an oval handle, the bow handle, a square handle, shake handles, adjustable plastic cooling pipe, cylinder Rubber shields, TL-1-engineering plastics Tuolian.

主要产品有手柄球、手柄套、长手柄套、手柄杆、椭圆手柄、转动手柄、曲面转动手柄、小转动手柄、可折安全手柄、可调位紧定手柄、小波纹手轮、小手轮、镀铬手轮、铣床手轮、圆轮缘手轮、背波纹手轮、内波纹手轮、双幅条手轮、双柄手轮、碟形手轮、把手、十字把手、星形把手、压花把手、外波纹把手、五角星形把手、蝶形把手、三角箭形把手、T形拉手、椭圆拉手、弓形拉手、方形拉手、摇动手柄、可调塑料冷却管、圆筒橡胶防护罩、TL-1型工程塑料拖链。

High strength: Aluminum-magnesium-silicon alloy wire possesses high strength, its min value of tensile strength is 170% of the value of general hard and round aluminum wire(H8), is a fine armored material;②Low loss:as a non-magnetism material, no eddy current loss will happened on aluminum-magnesium-silicon alloy wire; when under 20℃, itsunit resistance corresponding to 52.3~53.0%IACS (international annealed copper wire standard), so that, the heat loss caused by induced current is very low;③Light weight: the density of aluminum-magnesium-silicon is only 2.7g/cm3 it largely reduced the total weight of armored cable.

该电缆突出的优点是：①高强度：铝-镁-硅合金丝具有较高的强度，其抗拉强度的最小值都是普通硬圆铝线（H8）抗拉强度的170%，是一种较好的铠装材料；②损耗小：铝-镁-硅合金丝为非磁性材料，不存在涡流损耗；其在20℃时的电阻率相52.5~53.0%IACS，因此由感应电流产生的热损耗很小；③重量轻：铝-镁-硅合金丝的密度仅为2.7g/cm3，明显降低了铠装电缆的整体重量。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。