- arc
 - n. 弧(度);弧光(全称electric arc);弧形物;天穹
adj. 圆弧的;反三角函数的
vt. 形成电弧;走弧线 
同义词
           
       参考例子
           - 1.No colour fade after 300 hours close distant exposure to arc lamps.
 - 以炭精弧光灯近距离照射300小时,油漆没有褪色。
 
- 2.It also includes 246 residences, that form an arc that covers the open market area.
 - 还包括的246所住宅,形成一个弧形覆盖了整个公共市场领域。
 
- 3.The data structure contains members which specify whether the segment is an arc or a straight line, the length of the segment, and its starting position.
 - 这个数据结构包含了这些成员变量:强调线段是弧线还是直线的成员变量,线段的长度,以及线段的开始位置。
 
英文解释
           - n.
 - 1.electrical conduction through a gas in an applied electric field
 - 2.a continuous portion of a circle
 - 3.something curved in shape
 
- v.
 - 1.form an arch or curve
 
网络释义
               - arc
 - 电弧; 圆弧; 弧,弓形; 电弧,弧光;
 
- arc welding
 - 电弧焊; 电弧焊接; 弧焊; 电弧熔接;
 
- arc tangent
 - 反正切;
 
- arc lamp
 - 弧光灯; 电弧灯; 弧灯; 碳弧灯;
 
- major arc
 - 优弧; 大弧; 大弧,优弧; 主弧;