名词
中文翻译：绝缘层
同义词：
['insulation', 'dielectric', 'electrical insulation']
例句：
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1. The engineerused a special enamel insulation to protect the cable from damage.
工程师使用一种特殊的电绝缘材料来保护电缆免受损坏。
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2. The insulation is designed to prevent electricity from leaking through the wires.
这种绝缘设计用来防止电流通过电线泄漏。
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3. The insulation was tested for strength and durability before it was installed.
在安装之前，绝缘材料进行了强度和耐用性的测试。