灭弧角和避雷器是必需的，因为雷击桅杆是很常见的。
Arcing horns and lightning arresters are necessary because lightning strikes to the mast are common.
导弧板将电弧向熄弧栅引导，其靠近动触头一端具有直流引弧角。
A guide arc plate leads the electric arc to the arc splitter and the end close to the active contact is provided with a DC guide arc Angle.
直流换流器熄弧角是直流输电系统的重要电气量，常被用于判断直流输电系统逆变器的换相失败。
The extinction angle of the DC converter, which is usually used to study the commutation failure of the DC inverter, is an important parameter in the DC transmittal system.
椭圆是由其边框定义的；弧是椭圆的一部分，由一个起始角和一个扫描角定义。
An ellipse is defined by its bounding rectangle; an arc is a portion of an ellipse defined by a starting Angle and a sweep Angle.
角距离单位等于(待查表)毫弧。
A unit of angular distance equal to one thousandth of a milliradian.
采用宽板小成型角生产小口径螺旋缝埋弧焊钢管时，内焊缝产生裂纹是经常遇到的问题。
Inside weld produced cracks are often faced problem by adopting wide coil with small forming Angle to produce small size spiral submerged welded pipe.
在钻机里常采用弧齿圆锥齿轮提高角传动齿轮承载能力。
Spiral bevel gears are usually used to improve the bearing capacity of the Angle transmission gears on drill RIGS.
其方法主要采用两种方式：时角法和弧长法。
The method mostly use of two modes that are time Angle and arc-length.
二楼弧顶和尖顶三角楣饰交错排列，这是帕拉第奥风格的一个标志性特征。
On the second floor the pediments are alternately curved or pointed, a Palladian trademark.
卷弧翼与弹身扣合较好，在零攻角下会产生滚转力矩。
A zero-install roll Angle of the wrap around fins projectile still has roll moment at zero Angle of attack.
根据空间凸轮曲面压力角的定义推导出新型弧面凸轮分度机构压力角的解析表达式，分析该机构压力角出现最大值的情况，同时对如何降低最大压力角提出了一些改进措施。
According to defining of the global CAM curve, the resolution express of press Angle about a new type of indexing mechanism with arc surface CAM is provided.
本课题研制了一台采用三角形电流脉冲输出的单极性微弧氧化试验电源。
This paper brought forward a new kind of power supply whose outputting current pulse is positive right-angled triangle.
方法：将“Z”型不锈钢丝骨架带角度连接，形成弧型或弯曲成角食管支架，采用食管支架插送器固定支架的弯曲方向后放置。
Methods:The curved type stent made of "Z" type stainless steel was implanted after fixing it direction along the selected esophagus.
用尺规将一个任意角或弧绝对准确三等分是不可能的。
It is impossible to divide a given common Angle or arc (instead of the particular angles or arcs) into three equal parts by using a rule and compasses.
螺旋沟槽的轴向法向截面形状可以是U型、梯型、弧型或三角型。
The axial normal sections of the spiral grooves can present U shape, trapezoid, arc or triangle.
在等弧长比投影族球面正二十面体投影基础上设计了球面三角四叉树剖分模型(EARPIH)。
Based on the spherical icosahedron case of Equal Angle Ratio Projections (EARP), a new spherical Triangle regional Quadtree (EARPIH) is constructed.
在等弧长比投影族球面正二十面体投影基础上设计了球面三角四叉树剖分模型(EARPIH)。
Based on the spherical icosahedron case of Equal Angle Ratio Projections (EARP), a new spherical Triangle regional Quadtree (EARPIH) is constructed.
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