查询词典 circular

Secondly, in this part, we will introduce the notation of average geodesic curvature for curves in the hyperbolic plane, and investigate the relationship between the embeddedness of the curve and its average geodesic curvature. Finally, we will employ the Minkowskis support function to construct a new kind of non-circular smooth constant breadth curves in order to attack some open problems on the constant width curves for example, whether there is a non-circular polynomial curve of constant width, etc.

其次，对双曲平面上的曲线引入平均测地曲率的概念，并讨论双曲平面上凸曲线的嵌入性与它的平均测地曲率之间的关系，其目的是为了将双曲平面上曲线的性质与欧氏平面中曲线的性质作一些对比；最后，我们利用Minkowski支撑函数构造了一类新的非圆的光滑常宽曲线，其目的是想回答有关常宽曲线的一些未解决问题如是否存在非圆的多项式常宽曲线？

The basic molding tool provides the cube, the spheroid, the hemispheroid, the circular cylinder, the circular pipe, the ring, the centrum and the polygon.

基本造型工具提供立方体，球体，半球体，圆柱体、圆管、圆环，椎体和多边形。

The content of bilirubin in circular serum, amount of RBC and reticulocyte in circular blood,hemosiderin and hematoglobin in urine of 8 cases were detected before treatment and after copper needles retained for 1, 4, 7 days.

术后密切观察患者全身和局部变化以及有无急性溶血临床表现，检测其中8例患者留置铜针前及留置1、4、7天后血清胆红素、外周血红细胞及网织红细胞数、尿血红蛋白及含铁血黄素。

In order to promote the development of circular economy in China it is necessary to develop a set of key index for the assessment of circular economy development.

为了更好地推动我国循环经济的发展，建立相应的指标体系来衡量和指导循环经济的开展迫在眉睫。

So a new type quarter-circularbreakwater is brought forward.As the same weight as semi-circular breakwater,quarter-circular breakwater bottom length is reduced to decrease jackstone.

为此，提出一种圆弧面(1/4圆)防波堤的新堤型，在与半圆型防波堤断面自重相近时，尽可能减窄底宽，从而减少大量抛石基床的数量。

Grinding wheel is usually mounted on surface grinding machine, external circular grinding machine and internal circular grinding machine, and can also be mounted on grinding wheel machine, knife grinder and universal cutter grinder for grinding of cutting tool.

磨削是目前半精加工和精加工的主要加工方法之一，砂轮则是磨削加工中重要磨具，砂轮一般安装在平面磨床、外圆磨床和内圆磨床上使用，也可安装在砂轮机磨刀机，万能磨刀机上刃磨刀具。

At present, grinding is one of main machining methods in finish machining and semi-finish machining and grinding wheel is an important grinding tool in the process of grinding machining. Grinding wheel is usually mounted on surface grinding machine, external circular grinding machine and internal circular grinding machine, and can also be mounted on grinding wheel machine, knife grinder and universal cutter grinder for grinding of cutting tool.

专业生产各种规格的金刚石和立方氮化硼砂轮，专业顾问13715366652产品包括金刚石树脂砂轮，CBN树脂砂轮，金刚石电镀砂轮，金刚石青铜砂轮，陶瓷金刚石砂轮，磨削是目前半精加工和精加工的主要加工方法之一，砂轮则是磨削加工中重要磨具，砂轮一般安装在平面磨床、外圆磨床和内圆磨床上使用，也可安装在砂轮机磨刀机，万能磨刀机上刃磨刀具。

In this paper the stress analysis solution of parallel circular tunnels in elastic ground under any coefficient of lateral pressure is derived, and the stress field and displacement field of parallel circular opening subjected to continuous boundary stresses are first solved, and then the ground pressure and the internal force in lining are obtained, using the displacement compatibility equation between linin...

先求得连续洞周边界应力条件下双圆形洞室的应力场和位移场；再利用衬砌和围岩界面位移协调方程，获得平行圆形隧道的地层压力和衬砌内力公式，并可考虑开挖面的三维效应和洞室自由位移等因素。根据结论公式，对隧道间距、地层性质、衬砌厚度等诸因素进行了讨论，得到了单因素的一般规律，在此基础上，提出了平行圆形隧道最小间距的近似方法，并在某工程中予以应用，得到了满意的结果。本应力分析方法在平行圆形隧道的设计和施工中供作参考。

The macrocosm view of circular economy is fundamental thinking that can carry out circular economy in the meaning of whole human beings.

循环经济全局观是循环经济能够在全人类意义上实现的根本思路。

Based on the method of minimizing maximum workpiece errors,the circular parameters of normal profile of spline hobs are optimized to obtain optimal circular parameters of the hob by analyzing workpiece errors.

通过对工件齿形误差的分析，根据最大误差最小法的基本原理，对矩形花键滚刀法向齿形的圆弧参数进行优化，使滚刀加工出的工件齿形误差最

There had been a moment during the breakfast meeting, though, after the backslapping and the small talk and when all of us were seated, with Vice President Cheney eating his eggs Benedict impassively and Karl Rove at the far end of the table discreetly checking his BlackBerry, that I witnessed a different side of the man.

那次早餐会期间，在表示过关心和寒暄以后，我们所有人坐了下来，我注意观察了一下，副总统切尼面无表情地吃着班尼迪克蛋（Eggs benedict，源自美国，以英式松饼、火腿、水煮蛋以及荷兰酱组合而成），卡尔。罗夫在餐桌的远端谨慎地经常查看他的黑莓手机，我目睹了他所不为人知的一面。

Talk Undelete failed; someone else may have undeleted the page first.

Talk 无法删除选定的页面或图像（它可能已经被其他人删除了）。