sap wood
常见例句
- Sapwood is the lighter colored wood growing from inside the bark to the heartwood.
边材色泽较浅,是从树皮到新材之间的木质部分。 - Heartwood is the mature wood, which is often darker, extending from the sapwood to the pith.
心材通常是成熟的木材部分,通常色泽较暗,范围从边材一直到髓心。 返回 sap wood