inside sapwood[木] 内含边材
false sapwood边材腐朽病
bright sapwood原色边材
sapwood thickness边材厚度
sapwood stain边材变色
sapwood area边材面积
sapwood percent边材百分率
sapwood rot边材腐烂
sapwood forest边材树
N（名词） the soft wood, just beneath the bark in tree trunks, that consists of living tissue 边材 → compare heartwood