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單詞乎

heartwood

音標['hɑ:twud]
heartwood是什么意思、heartwood怎么讀

heartwood漢語翻譯

n. 心材

heartwood英語解釋

名詞 heartwood:

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

heartwood詳細解釋

heart.wood

n.（名詞）
The older, inactive central wood of a tree or woody plant, usually darker and harder than the younger sapwood.Also called duramen
心材，樹干：樹木或木本植物中較老的不再生長的部分，通常比樹齡短的邊材更硬且顏色更深也作 duramen

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