名词
中文翻译：弧维持装置
同义词：
['arc-maintenance device', 'arc-supporting device']
例句：
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1. Thearc-maintaining device is crucial for maintaining the stability of the system.
弧维持装置对于保持系统的稳定性至关重要。
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2.The arc-maintaining device was designed to prevent the cable from becoming damaged.
弧维持装置被设计用来防止电缆受损。
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3.The arc-maintaining device has been upgraded to improve its efficiency and reduce maintenance costs.
弧维持装置已被升级以提高其效率并减少维护成本。