圆柱体

The system utilized four laser scanners along lengthwise direction of the log. Data are obtained in every ten degrees when log is turning, in each cross section, 36 data are obtained. Then the data obtained were processed and an outline of the cross section of the log was developed on computer screen. Afterwards, the largest inscribed circles for log cross sections were determined according to the principle that three points can determine a circle. Secondly, the points located on the cross sections were linked up along some log generative in order to simulate the three-dimension log outline. At last the largest right circular cylinder were optimized and the optimum turning center was determined by means of projective theory.

具体作法是：在木段长度方向均匀设置四个激光传感器，当木段旋转时，起动激光传感器，进行数据采集，每隔10~0扫描一个点，在各横断面圆周上共采集36个点的数据，由计算机处理采集的数据，并绘制出原木横断面的几何图形，再根据三点定圆的原理，确定出最大内接圆；其次，模拟原木三维廓形，即将原木相邻横断面上离散点沿着母线方向连线，由计算机分析处理，绘制原木三维廓形；最后，采用投影法，优化出原木最大内接圆柱体，并确定原木回转中心线。

In the front viewport, click near the right end of the cylinder and drag it a little bit to the right.

在前视口中，单击圆柱体的附近，然后将它拉到右边一点。

Make an isometric drawing of the right cylinder.

画出圆柱体的正等轴测图。

Draw V, H views of the cutting right cylinder.

求圆柱体被截切后的H、W面投影。

Ferromagnetism substances can be regarded as a right cylinder, and magnetic field characteristics around the pipe pile were analyzed on combination with model piles' tests. Lengths of pipe pile under buildings were detected by the magnetic logging principle.

把管桩中的铁磁性物质等效成直立磁性圆柱体，结合模型桩试验，研究了管桩外部的磁场特征，并且利用管桩外部的磁场特征确定了某居民小区住宅楼基础中管桩的长度。

Based on the research of torsional wave and flexural wave of the transmission shaft , this paper obtained expression of theirs on the sine wave , the cosine wave , the exponential decrease wave , the exponential decrease seiche wave .

针对急剧冲击和大范围转动的特点，将圆柱体转动能量传输信息模型扩展建立在相对论基础上，建立了相对论性转动能量传输信息模型及其在不同坐标系下的转换模型。

The differential equations of the system formed by a homogeneous cylinder and a non-fixed inner semicylindrical surface arc derived.

均质圆柱体或球体在固定半圆形柱面内的微振动问题常常出现在一些理论力学教材[1—3]中。

Step 5. Subdivide the cylinder horizontally to add some vertices to work with.

第5步。细分圆柱体在横向添加一些顶点。

Finding 3D edges directly from 2D points, the algorithm is superior to the general algorithms in this field; introducing a cylinder as an additional subobject, it extends the domain of 3D objects which can be generated by the general algorithms for reconstruction.

算法直接由二维点求三维边，从而改进了这一领域的一般算法。通过引入圆柱体作为附加的子实体，扩充了一般算法产生的三维实体域。

It is, instead, shaped like a slightly tapering cylinder.

实际上，它的形状像纤细的两端尖尖的圆柱体。

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。