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When cables penetrate the protective tube, jute bag shall be applied for winding and blocking in case of cable damaging.
电缆穿过防护管后，应用麻袋条缠绕堵严，以防损坏电缆；
youdao
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When cables penetrate the protective tube, jute bag shall be applied for winding and blocking in case of cable damaging.
电缆穿过防护管后，应用麻袋条缠绕堵严，以防损坏电缆；
youdao