查询词典 circular arc

According to the theory calculation results of elastic contact status of roller and rib of 91754EQ bearing, the conclusion is that the arc rib is more easy to establish this oil film than tapered surface rib, and so when selecting proper geometry dimensions of arc rib and the long axis of contact ellips...

通过对 9175 4EQ轴承滚子-挡边的弹性接触状态理论计算表明：与锥面挡边相比，圆弧挡边更容易建立这种润滑油膜，而且通过合适选择弧挡边几何形状尺寸使接触椭圆长轴重合于卷吸速度方向时，将能够得到更大膜厚比数值的润滑油膜

Arc de Triomphe and the most unusual, it is said that whenever the anniversary of Napoleon's death in the evening, from the Champs Elysees looked to the west, a mission reflected in the setting sun just Arc de Triomphe arch of the circle.

而凯旋门最奇特之处，据说是每当拿破仑周年忌日的黄昏，从香榭里舍大道向西望去，一团落日恰好映在凯旋门的拱形圈里。

Operation sequence: The arc will switch to place "at the Arc," will be twice torch switch? Relax welding.

操作顺序：●将收弧转换开关置于&有收弧处&，先后两次将焊枪开关按下、放开进行焊接。

Taken into account the properties of arc plasma and electromagnetic, heat and radiative phenomena, commercial computational fluid dynamics software FLUENT has been adapted and extended by self-written routines to develop the 2-D magnetohydrodynamic model of air switching arc.

考虑电弧的物理参数以及电磁、热和辐射等现象，通过对商用计算流体力学软件FLUENT进行二次开发，建立了空气开关电弧等离子体的二维磁流体动力学数学模型。

A Rotary Arc Gap－switch in axial magnetic field is designed and built with high voltage, high current, large charge transfers, slight electrode erosion and long lifetime. The magnetic field, electric field distributions and move mechanism of the arc in axial magnetic field are studied.

为了满足高电压、大电流、高电荷转移量、电极烧蚀小、寿命长的要求，文中设计了一个由轴向磁场控制的旋转电弧间隙开关，研究了其电磁场分布及轴向磁场下电弧的运动机制，并进行了初步实验。

On the basic of experiments,the testing results of welding arc crossspectrum distribution of various arc crosssection along wavelength window are presented.

在试验的基础上，给出了焊接电弧光谱的频域及空间分布的测试结果，分析了焊接电弧光谱的结构。

In geoscientific field, in order to apply the spatial analysis, inquiry and visualization functions of the Arc/Info software, so as to analyze geoscientific data and extract information from them, an important step is to load geoscientific information into Arc/Info.

在地学领域中，为了利用Arc/Info软件的空间分析、查询和可视化功能，以便对地学信息进行分析和提取，地学信息的导入是很关键的一步。

Saddle shaped AMF can produce a radial expanding force, which has more effective effect on resisting the pinch effect of self-generated azimuthal magnetic field of arc current. This effect of saddle shaped AMF can keep vacuum arc in diffuse mode under much higher current. So the limiting current interruption capacity of vacuum interrupter can be enhanced.

为了进一步提高纵向磁场对真空电弧的控制作用，本文提出在真空灭弧室的触头间引入从触头中心向边缘逐渐增强的非均匀纵向磁场，马鞍形纵向磁场会对真空电弧产生一个径向扩张力，而纵向磁场分布的合理设计可以使这一扩张力进一步抑制真空电弧自生环向磁场对电弧的箍缩作用，从而使真空电弧在更大的电流时仍能保持在扩散态，使真空灭弧室的极限电流开断能力得以提高。

Has three above the arch dometo encircle the porch, highest is an exhibition room, here wasdemonstrating concerns the Arc De Triomphe each kind of historicalrelics as well as the Napoleon life story picture; Second iscollecting each kind of French medal, the medal; Lowest is Arc DeTriomphe's security guard place and the counting house.

在拱形圆顶之上有三层围廊，最高一层是陈列室，这里展示着有关凯旋门的各种历史文物以及拿破仑生平事迹的图片；第二层收藏着各种法国勋章、奖章；最低一层则是凯旋门的警卫处和会计室。

The basic principle to form foamed slag and the factors to affect the fomation are introduced Combined with the practice of using the technology of submerged-arc smelting with foamed slap in Electric Furnace Steelworks of Tangshan Iron and Steel Company, its role In electric-arc steel-making production is stated.

介绍了泡沫渣形成基本原理及影响其形成的因素，并结合唐钢电炉炼钢厂采用泡沫渣埋弧冶炼工艺的实践，阐述了该工艺技术在电弧炉炼钢生产中的作用，具有推广应用的价值。

The Master of Science degree program in Economics features a curriculum that is flexibl...

在经济学理学硕士学位的课程计划的特点是灵活而全面的方法，在理论和应用课程培训工作。

This module is used for constructing and visualizing 3D models.

该模块是用于建设和可视化的三维模型。