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- main curvature method 主曲率法
- A method is used to approximate several differential properties, including mean curvature, Guassian curvature and main curvature on scattered-point-sampled surfaces. 摘要提出一种直接在散乱数据点云上计算曲面的局部微分性质，包括平均曲率、高斯曲率和主曲率。
- According to the property of Bertrand, the main curvature on the mesh point is calculated by using the frame. 根据贝特朗曲面的特性,利用标架方法计算凸凹齿面在啮合点处的主曲率。
- The way and principle of Gaussian curvature method for forecasting natural fracture zones in coal seam are discussed. 摘要论述了高斯曲率法预测煤层天然裂隙发育区的基本原理和方法。
- Minimum curvature method is always used in directional well path design,horizontal well path design and clinometers calculation. 最小曲率法是定向井、水平井轨道设计、测斜计算中经常使用的一种方法。
- The multi-stage axial compressor performance was measured using a streamline curvature method based on two-dimension (axisymmetric) mathematical model. 摘要采用二维（轴对称）数学模型，应用流线曲率法求解多级轴流压气机特性。
- It is believed that this method is dimpler than the curvature method, not influeaced by interfering ions, and can be applied to other industries. 认为该法比曲线法更简单，不受干扰离子的影响，可在各行业中推广应用。
- The roof edge is detected by using local extremum of maximum main curvature along the direction of maximum main curva ture, and the direction of minimum main curvature is the trend of the roof edge. 通过屋脊边缘沿最大主曲率方向的最大主曲率局部极值检测屋脊边缘，同时最小主曲率的方向就是屋脊边缘的走向。
- The time marching throughflow design requires less experience data, and can get a more detailed flow field than the traditional streamline curvature method. 时间推进通 流气动设计方法与叶片任意造型和三维粘性流场分析共同组成了时间 推进通流气动设计体系的基本框架。
- If the section is a circular arc in the spatial slanting plane,the circular arc is the extremely reasonable bore hole path curve for slide drilling in minimum curvature method. 最小曲率法是定向井、水平井轨道设计、测斜计算中经常使用的一种方法。
- Natural Parameter Method is a kind of new method of wellbore trajectory computation succeeding Cylinder Helix Method(Radius of Curvature Method) and Minimum Curvature Method. 自然参数法是继圆柱螺线法和最小曲率法之后提出的一种测斜计算新方法,在井眼轨迹设计与计算中有着广泛的用途。
- By research of cause of mechanism and influence factor of fissure, this paper carries out the forecast of fissure using curvature method and synthesis discriminance. 分析研究本区裂缝的成因机制和影响因素的基础上，应用曲率法和综合判别法对本区深层各层位在不同时期的裂缝发育状况进行了预测；
- It is concluded that the Gaussian curvature method can reflect the shape variation of coal seam curvature, and the method is effective to forecast natural fracture zones in coal seam. 分析表明，高斯曲率法可相对真实地反映煤层曲面形态变化，用该方法预测煤层天然裂隙发育区是切实可行的。
- The difference and relationship between the deflecting force of bit and limiting curvature,build_up rate,etc in concept is discussed in this paper through limiting curvature method. 通过极限曲率法论述了钻头侧向力与极限曲率、造斜率等概念间的联系和区别。
- The principal curvature method and Gauss curvature method are two mathematic methods for appraising and predicating distribution of reservoir fractures. 最小曲率法是定向井、水平井轨道设计、测斜计算中经常使用的一种方法。
- The main impediment to growth is a lack of capital. 影响发展的主要障碍是缺乏资本。
- Crowds thronged the main square of the city. 城里的大广场上挤满了人群。
- The whole school (was) assembled in the main hall. 全校在大礼堂集合。
- The main feature on the program is her song. 那个节目的主要号召物是她的歌。
- Fables often have animals as the main characters. 寓言常以动物为主角。
