名词
中文翻译：火焰弧
同义词：
['arc', 'flame', 'spark', 'arcing例句：1. The firefighters were trying to extinguishthe flame arc from the building.（消防员试图熄灭建筑物中的火焰弧。）']
例句：
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1. The firefighters were trying to extinguishthe flame arc from the building.
消防员试图熄灭建筑物中的火焰弧。
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2. Thescientist observed the arc of the electronbeam.
科学家观察了电子束的弧线。
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3. The arc in the circuit wascausing a problem.
电路中的弧线造成了一个问题。