查询词典 circular cylinder

In order to model complex hair styles, such as curly hairs and wavy hairs, we first construct five types of surfaces and three curves: curved cylinder, curved circular frustum, curved prism, curved edged frustum, curved revolving paraboloid, and curved cylinder helix, curved circular frustum helix and curved revolving paraboloid helix. Then we give the expressions for points and normal vectors on these surfaces, suitable to composition.

为了构造复杂发型，例如卷发发型和波浪发型，我们首先构造了五种曲面和三种曲线：弯曲圆柱面、弯曲圆台面、弯曲棱柱面、弯曲棱台面和弯曲旋转抛物面，以及弯曲圆柱螺线、弯曲圆台螺线和弯曲旋转抛物螺线，并且给出了这些曲线曲面上适合于拼接的点和向量的表示方式。

The scattering by different shape and different media such as dielectric chiral or conduct circular cylider or elliptic cylinder are calculated and RCS curves are maped. The relation between the optimal polarization of the chiral elliptic cylinder and incident angle are maped. In accordance with the map, the information which is useful for radar target identification can be obtained.

对不同形状及参数的导体圆柱、椭圆柱，一般介质圆柱、椭圆柱，旋波媒质椭圆柱的散射特性进行了计算，给出了其RCS的变化曲线，并对极化散射矩阵进行了分析给出了旋波媒质椭柱最优极化的分布图，指出了其可提取用于目标识别的极化信息。

Secondly, in the trapezoidal channel which profile is that the base width is 20cm, the depth of channel is 20cm, the slope coefficient 1.0, and U-shaped channel which profile is that the depth of channel is 40cm, the radius of bottom circular arc, the external dip angle α of abutment wall is 8°, the article does a series of experiment researches on many of cylinder measuring flumes, such as circular, pier shaped, elliptic and diamond cylinder flumes, and discusses the variance of discharge coefficient, submergence factor, backwater height, head loss and critical submergence degree for each of cylinder measuring flume. On this basis, the article optimizes the structure shape of the cylinder measuring flume further.

然后，在底宽为20cm、渠深为35cm、边坡系数为1.0的梯形断面渠道和渠深为40cm、底部圆弧半径为15cm、边墙外倾角α=8°的U形渠道上，对圆柱形、桥墩形、椭圆柱形和菱柱形等多种柱形量水槽进行一系列的试验研究，探讨各种形式柱形量水槽的流量系数、淹没系数、壅水高度、水头损失、临界淹没度等变化规律，在此基础上，对柱形量水槽的结构形式作进一步优化分析。

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。

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 fine and rough grinding machining of t

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。

Finally, according to the researches of flume experiment and numerical simulation, the article puts forward a new method of flow rate calculation for the circular and pier shaped cylinder measuring flumes, which is much more application, and can meet the need of the free outflow and submerged discharge, meanwhile it analyses the precision of the new method, and provides the theory for the broad application of the circular and pier shaped cylinder measuring flumes.

最后，根据水槽试验和数值模拟研究成果，建立一套适用范围较广的、能满足自由出流和淹没出流需要的圆柱形和桥墩形量水槽的测流计算方法，并对方法的精度进行分析，为圆柱形和桥墩形量水槽的广泛应用提供理论基础。

Moreover, blobs may move too close to the boundary because of advection errors or other numerical errors. It may cause serious fluctuations in evaluating the strength of the vortex sheet. In order to reduce the fluctuations, these near-wall blobs are also manipulated in use of the concept of "residual vorticity". Finally, we apply the so-developed solver to a simulation of the flow past an impulsively started circular cylinder at different Reynolds numbers.

此外既有涡泡也可能因对流或其他数值误差造成过於靠近边界，因此我们也设计一专门处理过於靠近边界涡泡之方法，以其他计算元素取代这些涡泡，降低进入物体内部之环量，进而降低涡片强度计算上的扰动。

Chapter three and four analyze two kinds of piezoelectric transformers based on the three-dimensional piezoelectric linear theory and methods of thickness-shear mode circular cylinder piezoelectric transformer and torsional mode cylindrical thin shell piezoelectric transformer.

第三章和第四章以线性压电理论为基础，结合分离变量法和弹性力学的方法，具体分析了两类压电变压器，得到了各自问题的解析解。

In this thesis three kinds of piezoelectric transformers are investigated, including circular cylinder piezoelectric transformer of thickness-shear mode, cylindrical thin shell piezoelectric transformer of torsional mode and multi-layered rectangular plate piezoelectric transformer of thickness-twist mode.

本文研究了三种不同结构模态的压电变压器，包括基于厚度剪切模态的圆筒结构压电变压器、基于扭转模态的壳结构压电变压器和基于厚度扭转模态的多层矩形板结构压电变压器。

Main products: X, B two major series of horizontal, vertical single-level, two-stage, three planet-cycloid reducer, of Circular Cylinder Worm Gear Reducer, cylindrical gear reducer, a screw lift, Construction machinery and all kinds of metal casting products ....

公司主要产品： X、B二大系列卧式，立式的单级、双级、三级行星摆线针轮减速机，圆弧齿圆柱蜗轮蜗杆减速器，圆柱齿轮减速机，丝杆升降机、建筑机械及各种金属铸造产品。。。。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。