To separate the insulation, sheath and inner covering, and keep them from bonding and affecting the mechanical, physical and electrical properties of the cable.
隔离绝缘层和外护层以及内衬层，以防它们之间相互粘结而影响电缆的机械、物理、电性能等。
2
The formulation and process of PE covering materials for cable are studied, their properties and applications are also summarized.
研究了PE电缆护套料的配方及工艺，总结了其性能及应用。
3
Did the cable networks overdo it covering Anna Nicole Smith's death?