membron

例句：

1. 2.
   尤指
2. 1. The wood was harvested from the tree and then processed into membron for sale.
   这棵树被砍伐后加工成木髓出售。
3. 2. The membron is a popular material for making charcoal.
   木髓是一种制作木炭的流行材料。
4. 3. The membron was used as an insulator in the old houses.
   木髓被用作旧房子的隔热材料。