heartwood

汉语翻译

n. 心材

英语解释：

名词 heartwood:

1. the older inactive central wood of a tree or woody plant; usually darker and denser than the surrounding sapwood
   同义词：duramen

详细解释：

heart.wood

n.（名词）
The older, inactive central wood of a tree or woody plant, usually darker and harder than the younger sapwood.Also called duramen
心材，树干：树木或木本植物中较老的不再生长的部分，通常比树龄短的边材更硬且颜色更深也作 duramen