arc
arc
英[ɑːk]美[ɑːrk]
n.弧（形），电弧；
v.成弧线，呈弧形；
第三人称单数：arcs;
过去式：arced;
过去分词：arced;
现在分词：arcing;
例句
The rainbow described an arc in the dark sky.彩虹在昏暗的天空划出了一道圆弧。
The rainbow forms an arc in the sky.彩虹在天空中呈一个弧形。
When the moon is new it looks like an arc of light in the sky.新月看起来像天空中的一盏弧形灯。
The sun appears to move in an arc across the sky.太阳看起来在天空中以弧形运行。
Arc ignition : retracting and scraping.引弧可采用“回抽”、“刮擦”起弧方式.
Arc strikes outside of the welds were avoided.焊缝外要避免电弧穿刺.
The 3 sedimentary melanges in the Hagong Formation ( Late Carnian - Norian ) are resulted from the back - arc riftogenesis.哈工组 ( 卡尼晚期 ——— 诺利期 ) 中的三层沉积混杂岩是弧后裂陷作用的产物.
Carbon stripping foils were prepared by AC or DC arc discharge method.碳剥离膜可用交流电弧法或直流电弧法来制备,也可用交直流电弧来做多层膜.
It offer the reference for improving cutting quality of the numerical control plasma arc cuffing machine.为提高数控等离子切割机的切割质量提供参考.
We arc the people who make cookbooks.我们有些人编写食谱.
词组
minute of arc
见 minute (义项2)second of arc
英语四级真题
Asian-American parents arc enthusiastic supporters of the competitive instrumental music program.
2018年6月四级真题（第一套）阅读 Section B英语六级真题
There are some very commendable characteristics of the CFL [compact fluorescent ( ' , 荧光的 ) light bulb], yet the selection of any light source remains inseparable from the luminaire ( ' , 照明装置 ) that houses it, along with the space in which both arc installed, and lighting requirements that need to be satisfied.
出自-2015年12月阅读原文Laura Hamilton, the author of a study on parents who pay for college, will argue in a forthcoming book that college administrations arc overly concerned with the social and athletic activities of their students.
出自-2015年12月阅读原文They don't realize how typical their experiences arc.
出自-2013年12月阅读原文Extreme weather and reckless development arc plotting against the rain forest in ways that scientists have never seen.
出自-2013年6月阅读原文Such features arc easily written into the software.
出自-2013年6月听力原文There are some very commendable characteristics of the CFL (compact fluorescent light bulb), yet the selection of any light source remains inseparable from the luminaire that houses it, along with the space in which both arc installed, and lighting requir
2015年12月六级真题（第一套）阅读 Section BThis form of "self- governance" is possible within long-standing amateur organizations that, over time, arc able to build a sense of responsibility to community members, as well as society in general.
2019年6月六级真题（第三套）阅读 Section B柯林斯高阶英汉双解学习词典释义
N-COUNT
弧形；弧线
An arc is a smoothly curving line or movement.
例句
The Aleutian chain is a long arc of islands in the North Pacific.阿留申群岛是北太平洋上一长串呈弧形排列的小岛。N-COUNT
弧
In geometry, an arc is a part of the line that forms the outside of a circle.
VERB
成弧线；呈弧形
If something arcs in a particular direction, it makes a smoothly curving line or movement.
例句
A rainbow arced gracefully over the town.彩虹在小城上空画出了一道优美的弧线。英汉词典释义
n.
弧, 弧线,弧形
The sun appears to move in an arc across the sky.太阳看起来在天空中以弧形运行。弧形物
When the moon is new it looks like an arc of light in the sky.新月看起来像天空中的一盏弧形灯。vi.
作弧形运动
形成电弧
英英词典释义
Noun
1. electrical conduction through a gas in an applied electric field
2. a continuous portion of a circle
3. something curved in shape
Verb
1. form an arch or curve;
"her back arches""her hips curve nicely"行业词典
体育： 起掷弧；弧形；弧线；
医学： 弧，弓：曲线形或弓形的结构或投射途径；广言之，亦指一般呈弧形的放电。在神经生理学中指神经反射的通路；三神经元反射弧；
数学： 弧；又称 :弧(directed edge)；
电力： 灭弧管： arc-extinguishing tube；消弧工具： arc-extinguishing tools；消弧电抗器： arc-suppression reactor 又称“消弧线圈”。；
