名词
中文翻译：绝缘回线
同义词：
['insulated cable', 'insulated wire']
例句：
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1.The insulated return was installed to prevent electrical shocks.
安装绝缘回线是为了防止触电。
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2. The insulated return is essential for the safety of the equipment.
绝缘回线对于设备的安全至关重要。
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3. The insulated return was tested before it was used in the construction project.
在建筑项目使用之前，对绝缘回线进行了测试。