electric arc

基本解释

To fight off the perpetual blackness of the polar night, a windmill was installed to run electric arc lamps.
为了击退极地之夜的黑暗，他还装了个风车发电运行电弧灯。
Edison was not the first person to have thought of using electricity for illumination: cumbersome electric arc-lighting had been employed in public spaces and factories for a number of years.
爱迪生不是第一个想到用电照明的人；许多年来，笨重的电弧灯就在公共区域和工厂投入使用。
An electric arc punctured the container holding the liquid helium used to keep the collider at a temperature colder than outer space for maximum efficiency.
一道电弧刺破了对撞机的液态氦容器，6吨液态氦泄漏，安全阀失灵，使损害更加严重。

Esmark will rely on an electric arc furnace that can quickly be switched off as demand and prices fluctuate.
FORBES: Magazine Article
So I saw the 85-ton electric arc furnace.
WHITEHOUSE: Rebuilding the Economy, Creating New Jobs
On top of their lower labour costs, the mini-mills' electric-arc furnaces are much cheaper to build than iron-ore blast furnaces.
ECONOMIST: Steel: Rust never sleeps

电弧
Temperature is one of the important physical features of electric arc.
温度是电弧的重要物理特性之一。
物理学
电弧