heartwood

noun

1. （树木的）心材
   the hard older inner layers of the wood of a tree

1. Effect of Extraction and Compression on Hygroscopicity of Chinese Fir Heartwood
   抽提和压缩处理对杉木心材吸水吸湿性的影响
2. The Effective Components Extraction and Antifungal Test for the Heartwood of Platycladus orientalis
   侧柏心材活性成分的提取及其抑菌性能
3. What can be said about the range of dates of the last heartwood rings?
   怎样描述最后的心材环的日期范围。
4. The visualization is so perfectly done that the official plans for the stadium are altered to include an exact replica of a suite that Heartwood designed for the digital model.
   这个达拉斯牛仔体育场坐落在得克萨斯州阿灵顿。如此完美的可视化是完成计划的官方体育场变更为包括复制品的套件，心材而设计的数字模型。
5. Cedar heartwood is also an excellent choice, at a bit less cost.
   雪松心也是一个很好的选择，少一点成本。
6. The analysis of chemical component showed that the lignin content of solid material was lower, but the carbohydrate content of solid heartwood was higher.
   化学成分分析表明，实心材的木素含量较少，碳水化合物含量较高。
7. Effects of Provenances on Growth Characteristics of Sapwood and Heartwood of Larix gmelinii Trees
   兴安落叶松边材心材生长特征的种源效应
8. Inhibitory Effects of Heartwood Extracts from Strong Decay-resistant Tree Species on Wood Preservation
   强耐腐性树种心材提取物对木材防腐作用的研究
9. Very hard brown to brownish-red heartwood of a logwood tree; used in preparing a purplish red dye.
   十分坚硬的洋苏木心材，棕色到红棕色，用于配制一种紫红色染料。
10. One or more layers of living and functional sapwood cells are periodically converted to heartwood.
    每个生长周期都有一或多层活的边材细胞转变成心材。
11. The wood varies in colour from a flesh shade to a light reddish-brown with little distinction between heartwood and sapwood.
    木材颜色从肉色到淡红褐色不等，边材和心材区别很小。
12. The result showed that the density losses of the samples from the two trials were different along with the different rot time of the heartwood.
    两个试验林样品腐朽处理时间不同，样品密度损失差异显著。
13. One must be able to differentiate between cambium and heartwood when buying furniture.
    买家俱的时候，一定要分辨边材和心材。
14. ( Proterties) This article is shallow brown to yellow brown liquid, has fragrant air. reddish-brown wood and lumber from heartwood of the sweet gum tree used to make furniture.
    本品为浅棕色至黄棕色液体，气香。红棕色木料，取自香枫心材，用于制家具。
15. Rich and moist soils such as well – drained alluvial soils, do not support sandalwood well; the heartwood in such trees will be deficient in oil.
    丰富和潮湿的土壤，如排水良好的冲积土壤，不支持檀香很好，在这些树木心材将在石油不足。
16. Color and chemical characterization of partially black-streaked heartwood in teak ( Tectona grandis)
    柚木黑色条纹心材的颜色和化学特性（英文）
17. The sapwood is yellowish with a hard and heavy heartwood.
    边材微黄色，心材坚硬而且沉重。
18. PROPERTIES: Heartwood growing very slowly, so logs of large diameter used only. wood: Clear difference between pale sapwood and black brown heartwood.
    木材生长非常缓慢，因此此种所利用的原木通常只用大径木。淡色边材与深色心材区别相当明显。
19. The sapwood of most species is more susceptible to fungal attack than the heartwood with its higher extractive content.
    大多数树种的边材要比含有教高抽提物含量的心材更易受真菌的侵害。
20. The greatest variation takes place in the volume contractive rate of the heartwood, collapse factor and collapse depth of the sapwood.
    子宫内安放的避孕环（缩写为IUD）心材的体积收缩率、边交界材的皱缩因子和皱缩深度变化最大。
21. Reddish-brown wood and lumber from heartwood of the sweet gum tree used to make furniture.
    红棕色木料，取自香枫心材，用于制家具。
22. Sapwood contains xylem vessels, but not as strong as heartwood.
    边材含有木质导管，但不如中心木质那样坚硬。
23. Newly formed outer wood lying between the cambium and the heartwood of a tree or woody plant; usually light colored; active in water conduction.
    树木或木本植物形成层和心材之间的新生木质，通常色泽浅，水分传导性强。
24. Small tree of southern United States having dark red heartwood.
    美国南部小型树种，深红色心材。
25. The sapwood is pinkish and the heartwood pinkish-brown. Texture is uniform and occasional pieces have highly figured, wavy grain.
    边材为粉红色，心材为粉红褐色。质地统一，个别木材有图案明显的波状纹路。
26. Any of several small to medium-sized trees of Florida and West Indies with thin scaly bark and heavy dark heartwood.
    任何一种小到中等尺寸的树种，生长在佛罗里达和西印度，有薄的鳞状树皮和重的黑色的心材。
27. The hard, tough, heavy wood of such a tree. Sapwood contains xylem vessels, but not as strong as heartwood.
    山核桃木山核桃树坚硬、结实、厚重的木材边材含有木质导管，但不如中心木质那样坚硬。
28. In the heartwood of the old trunks, there is ample oak tannin and aromatic materials of oak, which ensures the quality of the oak products.
    这种老树干的心材中，含有丰富的橡木单宁和橡木的芳香物质，是保证橡木制品质量的关键所在。
29. It is important to note, color in this explanation refers to sapwood and heartwood.
    重要的一点说明是，这里的颜色是指边材和心材的颜色。
30. Objective: to evaluate the wind-damage effects on quality of heartwood of Lignum Santali albi.
    目的：评价风害损伤对檀香药材质量的影响。

noun

1. the older inactive central wood of a tree or woody plant

   Synonym:    duramen