noun
弧
part of a circle or a curved line
弧形
a curved shape
the arc of a rainbow
彩虹的弧形
The beach swept around in an arc.
海滩呈弧形伸展开来。
电弧
an electric current passing across a space between two terminals
verb
作弧形运动
to move in the shape of an arc
形成电弧
to form an electric arc
arc
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1
N-COUNT 弧形；弧线
An arc is a smoothly curving line or movement.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。
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2
N-COUNT 弧
In geometry, an arc is a part of the line that forms the outside of a circle. -
3
VERB 成弧线；呈弧形
If something arcs in a particular direction, it makes a smoothly curving line or movement.A rainbow arced gracefully over the town.
彩虹在小城上空画出了一道优美的弧线。
noun
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1
- electrical conduction through a gas in an applied electric field
- Synonym: discharge spark electric arc electric discharge
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2
- a continuous portion of a circle
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3
- something curved in shape
- Synonym: bow
verb
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1
- form an arch or curve
- her back arches
- her hips curve nicely
- Synonym: arch curve
数据来源：WordNet
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The rainbow formed a beautiful arc in the sky .
虹在天空中形成了一个美丽的弧。
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Numerical control air plasma arc cutting technology and its application
数控空气等离子弧切割技术及应用
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Joan of Arc was burnt at the stake .
圣女贞德被处以火刑。
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His pass described a perfect arc through the leaden sky .
他的传球在阴沉的天空中划出了一道完美的弧线。
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A group of actors are rehearsing a play about Joan of Arc
一群演员正在排演一出关于圣女贞德的戏。
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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。
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Joan of Arc was finally canonized by Pope Benedict XV in 1920 .
圣女贞德终于在1920年由教皇本尼狄克十五世封为圣徒。
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A rainbow arced gracefully over the town .
彩虹在小城上空画出了一道优美的弧线。
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The sun appears to move in an arc across the sky .
看起来太阳在天空中的运行轨迹呈弧形。
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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。
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Saint Joan of arc isn 't simple person .
圣女贞德不是一个普通的人。
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There arc more than 130 currently in operation .
目前有超过130颗立方体卫星在太空中运行。
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Friends arc important pillars of support .
朋友是我们最重要的支持来源。
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The torch can bring higher arc voltage with lower fluctuation by elongating the arc .
该喷枪能够提高电弧电压并减小电弧电压波动
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Design of control system of arc welding inverter based on DSP
弧焊逆变电源DSP控制系统的设计
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Study on New Methods of Current Measurement in Inverter Arc Power Source
逆变弧焊电源电流检测新方法的研究
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The Preparation of C _ ( 60 ) by Arc Method
电弧法制备C（60）的工艺
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Development of test - equipment for arc static characteristic
电弧静特性测试仪的研制
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The Data Measured of Welding Arc Short Circuit Transient Process
焊接电弧短路过渡过程数据的检测及处理
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The hot simulating test research of single electrode direct current arc furnace
单电极直流电弧炉热态模拟试验研究
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An effective trajectory planning method for spatial arc motion of manipulator
机械手空间圆弧运动的一种有效轨迹规划方法
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Wavelet signal processing system in arc - sensor
电弧传感器小波信号处理系统
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Simulation on dynamic characteristics of arc in low voltage circuit breaker modelling
低压空气电弧动态特性仿真及分析
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Arc voltage and welding current are signal source .
以电弧电压和焊接电流为采集的信号源。
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Present and Future Approach of Electron Arc Welding Machine
电子弧焊机现壮与未来的探讨
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Study on Arc Back Strike Phenomena in Low Voltage Circuit Breakers
低压断路器电弧背后击穿现象的研究
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Studies on Micro-Computer Test and Analysis System for Dynamic Properties of Arc Welding Power Sources
弧焊电源动态特性微机测试及分析系统研究
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In the real world almost all action moves in an arc .
在现实生活中，所有的运动都是有弧线的。
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Elementary Study On Plasma Arc Cutting of the Engineering Ceramics
工程陶瓷等离子切割基础研究
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Study On The Method of Wheat Kernel Shape Description Based on Arc and Line Ways
基于圆弧直线法描述小麦籽粒粒形方法的研究
指几何学中的弧，也指弧形或弧线。
an arc of 120
º120º的弧
The rainbow formed a beautiful arc in the sky.
虹在天空中形成了一个美丽的弧。
The sun appears to move in an arc across the sky.
看起来太阳在天空中的运行轨迹呈弧形。
指弧形结构的物体。
That arch has a span of 70 metres.
那个拱的跨度为70米。
She was going to visit the Triumphal Arch.
她打算去凯旋门游玩。
指弯曲的形状或呈弓形的物体。
The bow of his lips is very attractive.
他嘴唇的弧形曲线很迷人。
The child wanted to know why the rainbow is in a bow shape.
那个小孩想知道为什么虹为弓形。
含义最广，指任何带有弧度的线条或曲线状物。
The stairs ascended in a graceful curve.
楼梯呈优美的曲线上升。
There is a sharp curve in the road.
路上有个急转弯的地段。