圆柱

Numerical experiments are carried out to examine the computation accuracy and convergence speed of the method for the free-term coefficient and Cauchy principal value integration.

对截断圆柱上的波浪作用力与解析解做了对比，发现本方法具有很高的计算精度，随网格的加密迅速收敛于解析解。

The influence on absorption coefficient brought from shape choice with cylindrical or cone-shaped cavity, square or hexagonal profile, from different closure as air or water, from different material properties and structure sizes, are analyzed based on the numerical calculations. Some general characteristics are summarized. It shows that lowest resonance frequency of sound absorbent coefficient is inversely proportional to volume of cavity and sound absorbent coefficient is proportional to perforated percentage.

2通过数值方法研究了吸声结构内腔为圆柱腔和圆锥腔、基材的剖面形状为正四边形和正六边形、不同背衬、基材材料特性、尺寸大小对整体吸声效果的影响，总结了这些情况下非旋转对称吸声结构的声学特性变化规律，得出腔体体积越大，吸声系数最低共振频率越低；穿孔率越大，吸声系数越大的结论。

The methods of disturbance, spiral cylindrical cavity and stripline resonator were used respectively for measuring the permittivities for microwave dielectric substrates. The substrates are made from PTFE based fine ceramics, and errors of measurement have been analyzed.

采用微扰法、螺旋圆柱谐振法和带状线谐振法分别对聚四氟树脂复合精细电子陶瓷微波复合介质的复介电常数进行了测量与误差分析。

This paper presents a finite circle method for the solution to unaxial symmetry problem of composite shell of cylinder.

本文提出了求解复合材料圆柱壳非轴对称问题的有限环方法。

The design of laid-out curve of circular cone and cylinder intersecting curve is often used in practice.

圆锥或圆柱相贯线的展开曲线的设计是生产实际中常遇到的问题。

Is joined to the Revolves electric motor control, also may in each kind of curved surface superscript and so on the column, circular cone engrave.

配上旋转电机的控制，也可以在各种圆柱、圆锥等曲面上标刻。

This method can be used to other problems of flows around circular cylinder.

该方法也可用于其他圆柱绕流问题。

It confirms that lattice Boltzmann method is suitable for simulating the flow around circular cylinder in electromagnetic Field.

计算结果表明用格子Boltzmann方法计算电磁场中的圆柱绕流问题是可行的。

A new differential pressure flow-meter is developed by using the theory of flow around a circular cylinder.

应用圆柱绕流的基本理论，研制了一种新型绕流管差压流速流量计。

The transition process for oscillating circular cylinder is also simulated.

对振动圆柱尾流的转捩过程也作了数值模拟。

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。