查询词典 geometric drawing

Through the deep research of Cangyuan rock painting , the article inquires into its source of the drawing space consciousness in ancient times in the positivism angle , Pointing out China's drawing has already spread out with the West in the manifestation and the creation idea in the ancient artistic stage,.

文章通过对沧源岩画的解读，从实证主义的角度探究了其所传达的中国古代绘画空间意识之源。指出在原始艺术阶段，中国的绘画就已经与西方在表现形式和创作观念上拉开了距离。

Rely on the people-centered humanistic management, use of a "win-win" strategy in good faith with Coil, flat-screen passengers and wood, complete samples, with the advanced technology processing capacity, are: Dutai, etching, the profiling, snowflakes, or profiling, scrub boards, 8 K, 12K-long drawing, drawing short, the plate of rice and flower plates, and other losses.

依靠以人为本的人性化管理，运用&双赢&战略真诚地与卷板、平板及客材等，样品齐全，具有全国先进的技术加工能力，主要有：镀钛、蚀刻、发纹、雪花、合纹、磨砂板、8K、12K板、长拉丝、短拉丝、米粒板及蚀花板等。

Drawing Drawing is used primarily to add new objects to the model or to modify objects one-at-a-time.

绘图 绘图是被用来在针对一个模型添加新对象或修改已有对象的操作。

In addition, the blank holding force that is required to avoid wrinkle and rupture during conical part deep drawing is researched. The necessity of reasonable blank holding force in pressing is expounded. From the view of mechanical analysis, the wrinkle critical condition of side-wall is derived for the first time by the stress state of side-wall, the main deformation region on blank. According to the critical condition of plastic instability for flange, side--wall, corner of punch on blank, The blank holding force in conical part deep drawing is divided into four different regions within its forming figure. The basic principle of reasonable blank holding force during stamping is summarized and provided. The mathematical model of reasonable blank holding force that avoids the wrinkle and rupture is established and verified by the finite element numerical simulation and the grid experiment method. The result shows that it is accurate and reliable.

此外，本文还研究了圆锥形件拉深成形过程中，随着拉深变形过程的进行，毛坯为避免产生起皱、破坏缺陷而对压边力的需求情况，阐明了圆锥形件拉深成形过程中压边力合理变化的必要性；由毛坯主要变形区悬空锥壁部分的受力变形情况，从力学分析的角度，首次推导得出了圆锥形零件悬空锥壁起皱失稳的临界条件；并根据主要变形区法兰、悬空锥壁及凸模圆角部分的塑性失稳临界条件，在其成形范围图中，将圆锥形件成形过程中的压边力划分为四个区域；总结并提出了圆锥形件成形过程中压边力合理变化的基本原则；建立了防止起皱、破坏缺陷产生的压边力合理变化的数学模式，并得到了有限元数值模拟及网格实验法的验证，证实了理论分析结果的正确性和可靠性。

Draughtsmen make drawing on a drawing board , using a pencil and a T-square, set square and scale

绘图员用铅笔、丁字尺、三角板和比例尺在绘图板上绘图。

The concept and method of adding a projection plane to AUTO CAD drawing-board and drawing non-Euclidean geometry graph on the board are discussed. The correlative application software is programmed. The analysis of the working angle of complicate shows that developing the new type cutters are rapidly and accurately with this software.

提出了将射影平面叠加到AUTO CAD绘图板上并进行电子非欧几何作图的思想和方法；编制了相关的实用程序；通过对一复杂刀具的工作角度解析结果表明，用该软件分析刀具角度，开发新型刀具可达到即快又准的效果。

Is the start of a geometric progression.

1-4-16-64-256-是一个几何级数的开始。

The derivation doesnt need the somewhat non-intuitive geometric concept of the absolute conic.

3运动参数约束下的摄像机自标定，也即人们所说的基于主动视觉的标定。

Mainly focus on the effects of geometric configurations of heat transfer plate on the performance of absorber.

主要针对换热板溶液侧的几何形状对吸收器性能的影响进行实验研究。

ABSTRACT Complex fluid flow and heat/mass transfer problems encountered in engineering are characterized by geometric and/or dynamic complexity.

在许多工程部门中所遇到的复杂流动和传热传质问题包括几何形状的复杂性和动力的复杂性。

Go to your desktop and right click in a blank space.

请到您的桌面，然后右击一个空白。

Tara appears in Buddhism, Jainism, and particularly, Tibetan Lamaism, as a complex array of manifestations: goddess of ascetism and mysticism, mother creator, protectress of all humans as they cross the sea of life.

度母出现在佛教，耆那教里面，尤其是西藏的喇嘛教，作为一系列的陈列阵容；神秘的女神，创世之母，人类横过生命之海洋的女性保护者。