用于向弧或圆添加尺寸。将端点放在弧中心上、控制手柄放在弧线上。
Use to add a dimension to an arc or circle. Place endpoint at arc center, control handle on arc.
通过拖动可向弧或圆添加尺寸。将线端放在弧中心上，并将黄色的菱形放在弧线上。
Drag to add a dimension to an arc or circle. Place line end at arc center, and yellow diamond on arc.
用于表示圆或弧的中心，还可表示对称。
Use to indicate the centers of circles and arcs, and to represent symmetry.
设计的微弧等离子喷枪采用了独特的气路结构、喷嘴结构和中心轴向送粉方式；
The micro-plasma spraying gun adopted unique passage and spraying nozzle structure and center axial to be sent the powder method.
弧面分度凸轮机构是数控加工中心的核心部分，用于实现自动换刀机械手的精确动作。
The globoidal indexing cam mechanism, which is used to achieve the precisely changing position of ATC(Automatic tool changing), is the most important part of NC manufacture center.
提出了弧齿锥齿轮数控加工的直接插补算法，确定了铣齿刀盘中心运动和工件齿轮旋转运动之间的关系。
A direct interpolation algorithm of spiral bevel gear NC machining is proposed, thus establishing the relationship between the motion of the cutter-head center and the rotation of the work gear.
撑衣框的一边通过圆柱螺旋扭转弹簧的中心孔贯穿在大、小弧夹片的通孔中。
One side of the clothes-supporting frame passes through the centre hole of the cylindrical helical torsion spring to permeate in the through holes of the big arc clip and the small arc clip.
根据旋弧弧根处熔化液池的受力分析，在理论上建立了能描述旋弧喷溅侵蚀特性的函数关系式。此理论关系表明，在无外磁场作用下，液池中心受力最大，将形成中心喷溅；
According to the analysis of the applied forces on the molten poor at arc root the theoretical function in which the arc erosion of metal droplet ejection can be characterized was founded.
根据旋弧弧根处熔化液池的受力分析，在理论上建立了能描述旋弧喷溅侵蚀特性的函数关系式。此理论关系表明，在无外磁场作用下，液池中心受力最大，将形成中心喷溅；
According to the analysis of the applied forces on the molten poor at arc root the theoretical function in which the arc erosion of metal droplet ejection can be characterized was founded.
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