查询词典 circular

Pass to expati at e the characteristics of segment double circular arc gear, introducing the appl ication of segment double circular arc gear in turbine compressor, It presented that segment double circular arc gear in the high speed and large deeply turbi ne compressor was necessary.

通过阐述分阶式双圆弧齿轮传动特点，介绍了分阶式双圆弧齿轮在透平压缩机中的应用，说明在高速、型透平压缩机中采用分阶式双圆弧齿轮是必要的。

The author analysis the inherent link between the circular economy and the adjustment of the industrial structure, then adjust the industrial structure through transforming the value chain at the micro-enterprise level and building eco-industrial park at the meso-level based on the micro, meso and macro levels of the circular economy. All the transformation is to promote the development of circular economy and to change China's economic development model. Doing this, we want to change the traditional products economic

本文从系统的角度，分析发展循环经济与产业结构调整之间的内在联系，以循环经济发展的微观、中观、宏观三个层次为基础，通过微观企业层面上改造价值链和中观层面上构建生态工业园来调整产业结构，推进循环经济发展，改变我国的经济发展模式，使我国从传统的产品经济模式，向资源经济模式转换，进而实现循环经济在整个社会层面上的大循环，从而找到在全社会建立一种以循环经济发展模式为核心的可持续发展的社会-经济系统的具体实践。

Take the method of "subarea" and "conjunction" to segment the whole request model to three parts. Making use of boundary continuousness between medium and lining structure at stress and displacement, construct a wave function that can satisfy the stress boundary condition at horizontal surface by the scattering of SH-waves in circular part. And then, availing of the wave function, conjoin the circular part into the semi-circular hollow space at common boundary. The problem can be reduced to solve the question that can only meet the condition of "conjunction". Finally, the solution of the problem can be summarized to a series of algebraic equations and solved numerically by truncating the finite terms of the infinite algebraic equations.

采用"分区"与"契合"的方法，将整个求解区域分割成三部分，利用介质与衬砌结构在边界上的应力、位移的连续性，构造一个可以自动满足水平界面上应力边界条件的圆域对SH波散射的波函数；再利用这一波函数将圆域与半圆形凹陷半空间的"公共边界"进行"契合"，将问题简化成对一个只需满足'契合'边界条件的散射问题的求解；最终归结为对一组无穷代数方程组的求解问题，利用截断有限项的方法对其进行计算。

It connects different factories or enterprises by the way of transmitting material flow or energy flow, to form industrial symbiosis networks by sharing the resource and mutual exchange by-products. Under this pattern,"by-product" of one producing process may be the raw material of another process. In order to explore material closed circular, energy conservation system and minimum discharge of the waste, it set up the circular pathway by imitating the natural circular system as"producer—consumer-- decomposer"in the industrial system.

它通过物质流或能量流传递等方式把不同工厂或企业连接起来，形成共享资源和互换副产品的产业共生组合，使一家工厂的废弃物或副产品成为另一家工厂的原料或能源，模拟自然循环系统，在产业系统中建立"生产者—消费者—分解者"的循环途径，寻求物质闭路循环、能量多级利用和废物产生最小化。

In this thesis, terahertz transmission properties through three kinds of simple sub-wavelength metallic structures, including single sub-wavelength metallic circular hole, single sub-wavelength metallic slit and double sub-wavelength metallic slits, are experimentally investigated in the far field by using our own THz time-domain spectroscopy system and are theoretically analyzed. Conclusions are obtained as follows:(1) a single sub-wavelength metallic circular hole exhibits the same terahertz transmission properties as that of round metallic waveguide, which are influenced by the diameter of circular hole and the thickness of metal foil.

本文利用本实验室搭建的太赫兹时域光谱系统研究了太赫兹波段金属亚波长结构的透射特性，其中对三类金属亚波长简单结构即单个金属亚波长圆孔、单个金属亚波长狭缝和金属亚波长双缝的太赫兹透射现象进行了远场探测以及理论上的分析，得到了以下一些成果：(1)太赫兹波通过单个金属亚波长圆孔的传播现象与圆形金属波导具有相同的规律，其特性受到圆孔直径和金属箔厚度的影响。

It is found that the overall heat transfer coefficient of elliptic cylinder with k.0 is higher than that of a circular cylinder.At k=6.0,it has the maximum which is about 1.6 times that of a circular cylinder.At the same time,the drag coefficient drops down with the increase of k.For k=2.0,the drag coefficient is about 60％ that of a circular cylinder.

当k.0时，椭圆管的平均对流换热系数高于圆管；当k=6.0时，达到最大值，大约为圆管的1.6倍，同时，其阻力系数随着k的增大而减小；当k=2.0时，阻力系数约为圆管的60％。

The essay is about the teaching research into the relations between the definition geometrize nature and circular cone , in which the teaching research of definition mainly uncovers the nature of circular cone;geometry nature about how to lead the students to understand the geometry nature of circular cone with equations in the thought of figures and shape.

其中定义的教学探究主要是揭示圆锥曲线的本质特征，几何性质的教学探究主要引导学生从方程的角度，用数形结合的思想去理解圆锥曲线的几何性质。

In 1998, Longo described a method by which prolapsing hemorrhoids could be treated with a circular stapler, obviating the excision of either the anoderm or perianal skin. He postulated that the hemorrhoidal symptoms were primarily related to prolapse of the rectal mucosa and anoderm. The procedure for prolapsed hemorrhoids (PPH, a circular hemorrhoidopexy) resulted in simultaneous relocation and fixation of the hemorrhoids and anoderm. With the widening acceptance of hemorrhoids as prolapsed anal cushions, a circular hemorrhoidopexy has become a popular procedure for the treatment of symptomatic hemorrhoids.

在1998年Antonio Longo提出利用经肛门环形自动钉合器来治疗脱垂的痔疮，他认为痔疮的症状主要是因直肠黏膜及肛垫脱垂所引起，而环形的痔疮修补术可以将痔疮及肛垫组织重新定位回原来的正常位置，在随著普遍认为痔疮是脱垂的肛垫，环形的痔疮修补术已常用在治疗有症状的脱垂痔疮。

For the purpose of this requirement, a wire crossing the imaginary plane more than once is treated as separate wires and the cross-sectional area of a wire having a non-circular cross-section shall be taken as the cross-sectional area of a circular wire having a diameter equal to the maximum width of the wire having the non-circular cross-section.

为了达 到这一要求，电线不仅一次通过这个假想面。计算横截面积时，散线或非圆截面的电线的横截面积等同于圆线的最大直径横截面积。

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. According to different functions, grinding mode and type of grinding machine, grinding wheel is manufactured into ones with all kinds of shapes and sizes, and common grinding wheel includes plane grinding wheel, cylinder grinding wheel, double hypotenuse grinding wheel, cup grinding wheel, flaring cup wheel, disc wheel, centerless grinding wheel, etc. The types of products include external circular, plane and centerless grinding wheels used for f

公司的产品类型有用于钨钢硬质合金的精粗磨削加工的外圆磨、平面磨、无心磨砂轮；有用于陶瓷、氧化锆白陶瓷、黑陶瓷行业的CBN/SDC金刚石平形砂轮、精密切割片、平行加强形砂轮和开槽电镀磨头；用于钢化玻璃，灯饰玻璃，水晶玻璃，磁性材料行业的CBN/SDC金刚石精密切割片，青铜磨盘，青铜切割片，平行双粒度磨盘和小磨头，深加工行业的CBN电镀和烧结磨轮、抛光磨盘；用于高速钢，45#钢的剪刀、锯片、刀片的精粗加工，用于加工硅片材料、铁氧体及其他材料的金刚石工具；以及其他行业需要的各种要求的非标金刚石工具。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了