查询词典 planar developable surface

By means of equalizing the histogram, the contrast of original thermal image is enhanced; then image region of the disc surface of insulator is intercepted manually; through the envelope of the smoothened histogram of thermal image the segmentation threshold is extracted and the morphological filtering is applied to the threshold- segmented binarized image to obtain insulator disc surface image and background image, and then 10 infrared image features of insulator disc surface image and background image, such as the highest temperature, the lowest temperature, mean temperature, variance of temperature distribution of both kinds of images, as well as maximum temperature rise and mean temperature rise of insulator disc surface relative to background, are extracted; finally, the good and bad features are discriminated by single factor variance analysis, thus the feature selection is implemented.

利用直方图均衡化增强原始热像图对比度，人工截取绝缘子盘面图像区域；通过平滑后的图像直方图包络线提取分割阈值，对阈值分割后的二值图像进行形态学滤波，得到绝缘子盘面图像和背景图像，提取2者的最高温度、最低温度、平均温度、温度分布方差以及盘面相对于背景的最大温升和平均温升共10个红外热像特征；应用单因素方差分析甄别特征优劣，实现特征选择。

Connecting sand body migration systems may controls the forming of oil-gas reservoir due to bottom bed overlap. lithologic pinch out, and/or the fault barrier. The migration system consisting of unconfornfity surface, sand bodyunconformity surface, and/or unconformity surface-fault, may control the forming of the bedrock weathered crust type oil-gas reservoir. The migration system consists of fault, sand body-fault, and/or sand body-unconformity surface, may control formation of oil-gas reservoir due to fault block, anticline, structure-lithologic, and/or fault-lithology.

连通砂体输导系统可控制底层超覆、岩性尖灭、断层遮挡油气藏的形成；不整合面、砂体-不整合面、不整合面-断层组成的输导系统可控制基岩风化壳油气藏的形成；断层、砂体-断层、砂体-不整合面-断层组成的输导系统可控制断块、背斜、构造-岩性和断层-岩性油气藏的形成。

During the course of the initial 1.5ML layer-by-layer growth, the first 0.5ML silver atoms fill in the missingrow sites of the Pt (110)-(1×2) surface and form a pseudo Pt (110)-(1×1)-0.5ML Pt0.5ML Ag surface structure, then the subsequent 0.5ML and the last 0.5ML silver atoms locate on the silver sites and the platinum sites of the pseudo (1×1) surface, respectively. At 600K, the formation of AgPt surface alloys follows the layer-bylayer growth of Ag thin film up to 2.25ML.

Ag原子在表面的定位非常有序，当0≤θ〓≤0.5ML，Ag原子填充Pt(110)-(1×2)表面的&missing-row&位并形成Pt(110)-(1×1)-0.5ML Pt-0.5ML Ag表面结构；当0.5ML≤θ〓≤1.0ML，Ag原子生长在Pt(110)-(1×1)表面的Ag位；当1.0ML≤θ〓≤1.5ML，Ag原子生长在Pt(110)-(1×1)表面的Pt位。600KAg薄膜在Pt(110)-(1×2)表面层层生长至2.25ML，然后形成表面合金。

The error of a surface on the electrical potential distribution can be neglected when the order of the distance which from center to the surface we assume the potential decay to zero about 102 of its radius. This effect also can be neglected when the potential is high, but it can be taken into account by multiplying a correction function to the potential of surface when the surface potential is low.

并且当表面电位较高的时候，近似解析解对於空间电位的分布会有较好的描述，即和数值解的结果会有较少的误差；而在表面电位较低的情况下，圆柱座标以及球座标的近似解可以乘上一个校正函数来修正，则可以有效的大幅降低误差，更可以正确的描述胶体粒子内部的空间电位分布。

Two pairs of chutes and holes on the cleaning base and the brushes form the double chute swing mechanisms by the connection of an axis and cause the brush to cling to the wall surface to clean by the friction feedback, thus achieving effective cleaning when walking error occurs and the pipe section changes, furthermore, the larger the friction on the wall surface is, the larger the forward pressure on the wall surface is, therefore, the dirtier the wall surface is, the higher the cleaning efficiency is.

清扫底座与刷子夹上的两对滑槽和孔通过轴的连接形成双滑槽摆动机构，并通过摩擦力反馈使得刷子能够紧贴壁面进行清洗，从而在出现行走误差和管道截面变化时都能够有效清洗，并且壁面摩擦力越大刷子作用在壁面上的正压力越大，因此壁面越脏时清扫效率越高。

The original contact surface is a helical plane tooth surface of which the solid model can be easily obtained, and the new contact surface is a complicated curved surface formed by the so-called new contact lines.

原来的接触面是螺旋面牙齿表面的实体模型，可以轻易取得，而新的接触面，是一项复杂的曲面形成了所谓新的联络线。

That means that we take maximum settlement value as an objective value, that is, to control surface settlement is to control pipeline deformation. Its research paths are to make decision of computational method of maximum surface settlement and settlement pattern firstly; then to establish the relationship between maximum surface settlement and ground pipeline deformation and strain, to get maximum surface settlement in term of th

研究思路是：首先要搞清楚地表沉降的规律以及地表最大沉降值的计算方法：然后研究地表最大沉降值W.x与地下管线的变形及应变的关系，从而可以根据管线与隧道的相对位置、地层条件、管线的允许变形情况求出w皿厂这样通过控制地表最大沉降值w删x就可以间接控制隧道工程对地下管线的影响。

In this study, a commercial CAD/CAM Software is used to plan and generate the multi-axis tool path, and a table rotating/tilting type five-axis machining center is used to perform the experimental machining operation. The material of the die studied is NAK 80 die tool steel, and the geometries are modeled as concave and convex spherical surfaces. Milling parameters considered are spindle speed, feed rate, and different types of cutting tool path. The experimental results show that the surface roughness for concave spherical surface is about 0.247 μm and roundness is about 0.0283 mm and the surface roughness for convex spherical surface is about 0.250 μm and spherical roundness is about 0.0551 mm under the cutting conditions mentioned in this study.

本研究的实验方法与步骤包括利用商用CAD/CAM系统针对实验对象规划三轴/五轴同动加工路径，并经后处理程式转换，在本实验室之平台倾斜/旋转型之五轴加工机上进行实验，实验对象为NAK80模具钢材料之凹与凸球形曲面之加工，此外考虑的切削条件有主轴转速、进给速度、加工路径等，在本研究所设定之最佳切削条件下，凹球形曲面之真圆度约为0.0283 mm，粗糙度为0.247 μm，而在相同切削条件下，凸球形曲面之真圆度为0.0551 mm，粗糙度为0.250 μm。

The experimental results show that the estimated strength of cylindrical specimens and core specimens taken from plate-like specimens under the condition of saturated surface-dry were good and the difference between the estimated strength and the measured strength is within 10%. For the plate-like specimens used in this study, measured the surface P-wave and internal P-wave, and investigate the difference between surface P-wave and internal P-wave velocities. Firstly, the internal P-wave velocity was recovered to the saturated surface-dry condition.

实验结果显示，350 kgf/cm2自充填混凝土及早强混凝土之圆柱试体及版试体所进行波速－强度关系曲线验证结果良好；而将圆柱试体及版试体套入粗骨材含量波速－强度关系式所得结果，其圆柱试体28天超音波强度预估差异约10%，显示试体28天处於面乾内饱和状态，以粗骨材含量配合波速量测来预估强度之结果良好。

Produce light oil film spray conditions normally finish normally does not produce a spray, such as user surface in cigarette packages are often in a layer on the surface of another polyolefin film, humidity and temperature in particular to certain conditions, when oil coating, the surface oil often very short gasficatic cause light fastness oil attachthemselves badnessand and above on the surface of polyolefin film appears with uniform small steam fog, in which case the contrary result in reducing or andgrainy of the goods.

产生光油薄膜雾化条件正常情况下，上光油一般不会产生雾化，例如用户在香烟盒表面往往在表面再覆一层聚烯烃薄膜后，湿度大、特别是气温高到一定条件时，当底油涂布后，面油往往因极短暂的气雾致使光油附着牢度不好，而覆在上光油表面的聚烯烃薄膜就会出现浓浓的均匀的雾状小蒸汽，这时反而降低或导致商品的肉质的变化。

Pachomius manual labour was organized as an essential part of the monastic life; and since it is a principle of the monks as distinguished from the mendicants, that the body shall be self-supporting, external work of one sort or another has been an inevitable part of the life ever since.

根据圣pachomius体力劳动组织作为一个重要组成部分寺院生活；以来，这是一个原则的和尚，作为有别于乞丐，该机构应自支撑，对外工作的这种或那种已一个必然的一部分，生活至今。

In order to study the effects of parametrical rolling on the ship movement and tilts, in allusion to ship's navigating in regular following waves, the equation of ship rolling motion is transformed into normal Mathieu equation by proper variable replacement when strong parametrical excitation in restoring moment varied according to sine or cosine wave.

为研究参数横摇对船舶运动和倾覆的影响，通过对船在规则波上随浪航行时，恢复力矩中出现的1个以正余弦规律变化的强参数激励项进行适当的变量置换，将船舶的横摇运动方程转换成标准形式的Mathieu方程。