At present, the shielded category cables use single or double copper braid as shield, which features low productivity and high costs.
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。
Has good mechanical, electrical insulation, and chemical properties. It also has the property of anti-electromagnetic wave due to the double- shielded structure.
聚氯乙烯机械性能好，电绝缘性能优异、化学稳定性能优良，由于采用了新性的铝箔麦拉加铜网编织双层，有效抵抗电磁波干扰。
The hardness of welded joints obtained by double-wire submerged arc welding is significantly better than that obtained by CO2 gas shielded. The peak hardness appears in the heat affected zone.
CO2气体保护焊接头的硬度值明显较双丝埋弧焊接头的硬度值高，硬度值在热影响区出现峰值。
The hardness of welded joints obtained by double-wire submerged arc welding is significantly better than that obtained by CO2 gas shielded. The peak hardness appears in the heat affected zone.
CO2气体保护焊接头的硬度值明显较双丝埋弧焊接头的硬度值高，硬度值在热影响区出现峰值。
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