名词
中文翻译：副线
同义词：
['auxiliary line', 'auxiliary cable', 'supplementary wire']
例句：
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1. The subspinale is used to connect the main power line to the backup generator.
副线用于将主电源线连接到备用发电机。
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2. The engineer used the subspinale to troubleshoot the circuitry.
工程师使用副线来排查电路问题。
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3.The subspinale is essential for maintaining the stability of the electrical system.
副线对于维护电气系统的稳定性至关重要。