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这些电线由一个塑料绝缘层缠了起来。
The wires were cabled together with a plastic tie.
youdao
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绝缘的最好是喷沫塑料。
The insulation could be spray-on plastic.
youdao
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电绝缘体包括了橡胶、塑料、陶瓷和云母。
Electrical insulators include rubber, plastic, porcelain, and mica.
youdao
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电绝缘体包括了橡胶、塑料、陶瓷和云母。
Electrical insulators include rubber, plastic, porcelain, and mica.
youdao