corrugated metallic sheath

例句：

1. 1. The corrugated metal sheath is used toprotect the cable from damage during transportation.
   波纹金属护套用于在运输过程中保护电缆免受损坏。
2. 2. The corrugated metalsheath is a common material for electricalinsulation.
   波纹金属护套是一种常见的电气绝缘材料。
3. 3. The corrugated metal sheathis made of high-density polyethylene, whichmakes it durable and resistant to wear.
   波纹金属护套由高密度聚乙烯制成，这使得它耐用且抗磨损。