目前使用的屏蔽数据通信电缆通常为单层或双层铜丝编织结构，生产效率低，成本高。

At present, the shielded category cables use single or double copper braid as shield, which features low productivity and high costs.

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目前使用的屏蔽数据通信电缆通常为单层或双层铜丝编织结构，生产效率低，成本高。

At present, the shielded category cables use single or double copper braid as shield, which features low productivity and high costs.

youdao