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- Then, based on the continuous land surface map of tree, herbaceous and bare, the land use classification was made using expert classifier. 然后根据所生成的林地、草本和裸地的连续覆盖图,基于专家分类器进行土地利用分类。
- A ruled surface of revolution formed by an edged circle as the guide element is proposed in the category of basic geometrical bodies. 摘要在基本几何体的范畴内,提出一种以棱圆为导元素的直纹曲面。
- Geophysics is most commonly employed as a surface mapping method. 地球物理勘探是一种最常用的地面测绘方法。
- This article not only discusses the ruled surface features of uniparted hyperboloid and its application in archtecture engineering but also discusses the teaching of the ruled surface. 本文主要讨论了单叶双曲面的直纹性,指出它在建筑工程中的应用,并对直纹面的教学作了探讨。
- The ruled surfaces were used to approximate the freeform surface of blade,attention was focused on the 5-axis plunge milling of blisk's tunnel. 针对整体叶盘等复杂结构件,从锻造毛坯到最终零件加工成形,需要切除大量的多余材料的问题,提出了一种开式整体叶盘通道的五坐标插铣粗加工方法。
- Two new methods are presented for machining ruled surfaces.By means of adjusting the changing rate of straight generatrix, the first method can reform a general ruled surface into a developable one. 提出了2种加工直纹面的新方法.其中第1种方法通过调整直纹面上母线方向的变化规律,使之成为可展面,以便在加工中获得无脊棱的光滑曲面;
- According to the thickness of the blade, variable distance offset curves of the shroud camber line and hub camber line were acquired, then the blade surface can be expressed by ruled surface. 按照叶片的厚度做盖盘曲线和轴盘曲线的变距偏置曲线,得到叶片曲面的直纹化表达式;
- The authors show that the hyperboloid of one sheet and the hyperbolic paraboloid are ruled surfaces. 作者证实:单叶双曲面和双曲抛物面是直线曲面。
- British colonies were ruled by governors. 英国的殖民地由总督统治。
- Scientists are trying to map the surface of the moon. 科学家们正设法绘制月球表面图。
- director cone of a ruled surface 直纹面的准锥面
- double generator of a ruled surface 直纹面的二重母线
- singular generator of a ruled surface 直纹面的奇异母线
- CAGD for Building with Ruled Surface 计算机绘制曲面型房屋建筑
- In order to further reduce the texture distortion which was caused by the algorithm of hemispherical surface mapping, the algorithm of traditional hemispherical texture mapping and its deficiency were discussed. 为了进一步减少半球面映射算法产生的纹理形变,首先对传统的半球面纹理映射算法及其不足之处进行分析,并在此基础上提出一种半球面纹理映射新算法。
- This process is independent of the surface mapping, so the size and shape of the elements can be controlled more easily. Then some post-processing is applied to enhance the quality of the generated grid. 鉴于非结构网格在处理复杂形体表面的优势,本文采用阵面推进法直接在三维表面上生成非结构表面网格,采取有效的算法处理了空间三角形网格单元生成的有效性判断,并对网格进行了优化处理,大大提高了原始网格的质量。
- A straight line was ruled across the map. 一条直线横划在地图上。
- Objective To study the relationship between QRST isointegral departure analysis of body surface mapping (BSM) and left ventricular ejection fraction (LVEF) in myocardial infarction (MI). 目的探讨体表心电标测中QRST积分偏差图与心肌梗塞患者左室射血分数的关系。
- WU Ji-ming,SUN Shao-rui,WEI Ji-hong.Forecast of overbreak in opening based on discontinuity surface mapping of mechanics mechanism[J].Rock and Soil Mechanics,2004,25(8):1 220-1 224. [6]吴继敏;孙少锐;魏继红.;应用力学机理的网络模拟预测隧洞超挖问题[J]
- Charles ruled England for 11 years. 查理一世统治英国11年。