名词
中文翻译：真空加速器
同义词：
['vacuum accelerator', 'vacuum tube accelerator']
例句：
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1. Thecavity in the machine is filled with a gas to help it operate efficiently.
机器中的空腔里充填了一种气体，以帮助它高效运行。
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2. The cavity between the two plates of the accelerator is crucial for the acceleration process.
加速器两块板之间的空腔对于加速过程至关重要。
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3.The cavity of the accelerator is designed to minimize the energy loss during the acceleration process.
加速器的空腔设计是为了在加速过程中最小化能量损失。