名词
中文翻译：火花
同义词：
['bright spot', 'spark gap']
例句：
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1.The spark spacer between the two plateshelps to prevent the metal from welding together.
两个板之间的火花间隙有助于防止金属焊接在一起。
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2. The engineer used aspark spacer to create a small explosionthat could be controlled.
工程师使用火花间隙制造了一个可以控制的小型爆炸。
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3. The sparkspacer was designed to improve the efficiencyof the machine's operation.
火花间隙的设计旨在提高机器操作的效率。