Tortoise shell network: ensure lining materials plasticity at all kinds of locations and increase toughness substantially moldinglining.
龟甲网络：保证衬材在各种部位的可塑性，大幅增强成型衬里的韧性；
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The paper studied the weaving process, molding technique and resin treatment of the tubular fabric composite material for repairing the textile lining of a tube under non-digging out conditions.