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配置封闭式输电滑环，电缆线不缠绕，导电良好。
Equipped with a closed transmission slip ring, cable is not wrapped, good electrical conductivity.
youdao
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配置封闭式输电滑环，电缆线不缠绕，导电良好。
Equipped with a closed transmission slip ring, cable is not wrapped, good electrical conductivity.
youdao