cork periderm

例句：

1. 1. The cork periderm is a natural barrier that protects the wood from moisture and decay.
   软木外层是一种天然的屏障，保护木材免受水分和腐烂。
2. 2.The cork periderm is also used as an insulator to keep the interior of the container cool.
   软木外层还用作绝缘材料，保持容器内部凉爽。
3. 3.The cork periderm is harvested from the bark of the cork oak tree and is used in the production of cork products.
   软木外层是从栓皮栎树上收获的，用于生产软木制品。