pine wool

例句：

1. 1. The pine bast is used for making furniture and building materials.
   松树毛皮用于制作家具和建筑材料。
2. 2.The pine bark is used as a natural insulator in construction.
   松树皮作为天然的绝缘材料在建筑中被使用。
3. 3.The pine bast is also used to make ropes and twine.
   松树毛皮还用于制作绳索和线。