| 释义 |
sap wood
基本英英例句
边材
名词 sapwood:
newly formed outer wood lying between the cambium and the heartwood of a tree or woody plant; usually light colored; active in water conductionSapwood 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。 |