| 释义 |
heart·wood 英ˈhɑːtˌwʊd美ˈhɑrtˌwʊdAHDhärtʹw‹d' 高COCA⁸⁶³²⁸BNC⁵⁹¹⁹³iWeb³³⁹⁰²
基本英英搭配记法近义反义例句例句
n.赤木质¹²;心材⁸⁸
Noun:
the older inactive central wood of a tree or woody plant; usually darker and denser than the surrounding sapwoodheartwood rot心材腐蚀heartwood tree心材树
heart心-wood⇒n.赤木质¹²;心材⁸⁸近义词 duramen心材
名词100%
用作名词The narrow band of sapwood is very similar in colour to theheartwood.边材的窄带颜色与心材非常相似。 In this work main chemical changes between green wood and air dried wood, heartwood and sapwood in their extractives of Picea jezoensis var. komarovii and Abies nephrolepis are studied.
研究长白鱼鳞云杉、臭冷杉的木材及其抽出物化学组成，并分析生材与气干材、心材与边材中各种化学组成变化的规律。 cnki |