double ply

例句：

1. 1.The double ply material is stronger and more durable than traditional fabrics.
   这种双层材料比传统的布料更坚固耐用。
2. 2.The double ply roof is designed to withstand heavy snowfalls.
   双层屋面设计用来承受大雪。
3. 3. The double ply carpet is softer and more comfortable underfoot.
   双层地毯脚感更软更舒适。