查询词典 heartwood

Sapwood is the lighter colored wood growing from inside the bark to the heartwood.

边材色泽较浅，是从树皮到新材之间的木质部分。

The greatest variation takes place in the volume contractive rate of the heartwood, collapse factor and collapse depth of the sapwood.

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。

Water and nutrients are only transported in the outermost youngest wood, termed the SAPWOOD. The nonfunctional compacted wood of previous seasons ' growth is called the HEARTWOOD and it is this that is important commercially.

水分和养料的运输仅限于发生在初生木材的最外围，即边材；前一季度生长的致密无功能的木材称为心材，此为重要的商业用料。

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。

This paper discusses wood surface visual quality of different genealogy of Eucalyptus pellita. The results showed that the color characteristics of heartwood and sapwood all have their distribution rang in XYZ(1964) color system, CIE(1976) L*a*b* color system and Munsell color system.

对人工林粗皮桉不同家系的木材表面视觉性质进行了研究，结果表明：粗皮桉心材和边材材色在XYZ 空间（1964）、CIE（1976）L*a*b*均匀色空间及孟塞尔色空间中，均有一定的分布范围。

The results showed: the variance analysis of colour parameters among different species eucalypt wood are significant and the color index in heartwood is higher than that in sapwood.

摘 要：以五种桉树人工林木材为研究材料，用测色仪和氙衰减仪测试了五种桉树木材的颜色和耐光性，比较了这些桉树木材的颜色参数，结果表明：不同种类桉树木材材色参数之间差异显著，桉木心材部分的色品指数和色饱和度高于边材；桉木的耐光性随氙灯照射时间的增加而逐渐变差。

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。

According to the observation of the microstructure of small diameter lumber with scan electron microscope, there are many bordered pits of the radial trancheidal wall in the small-diameter Larch, and most of them have pit film. The resin is not only in resin canal, but also in some trancheid and ray parenchyma cells. The drying defects of small-diameter Larch lumbers were the most severe in consecution heating, fluctuating-heats 2h in between, and drying defects were nearly not observed in fluctuating-heats 6h. There is tylosis in the vessel of the heartwood of small-diameter Cathay poplar. The bordered pits of the radial trancheidal wall are dense, and the pits between vessels are alternate, most of them have pit film. Different collapse happened in all the small-diameter Cathay poplar lumbers. The collapse of small-diameter Larch lumbers was the most severe with consecution heating, fluctuating-heats 2h in between, the least with fluctuating-heating 6h.

通过扫描电镜观察发现，小径木落叶松的径壁具缘纹孔数目较多，且多具纹孔膜，小径木落叶松除在树脂道中含有树脂外，在一部分管胞胞腔内以及一些木射线细胞中也含有树脂，在产生缺陷的小径木落叶松锯材中，连续加热方式下锯材的开裂缺陷最为严重，波动2时次之，波动6时几乎没有开裂现象；小径木大青杨心材导管中的层状浸填体含量较多，且径壁具缘纹孔较为密集，管间纹孔呈互列方式，绝大多数纹孔具有纹孔膜，干燥后的小径木大青杨锯材均有不同程度的皱缩现象产生，其中连续加热干燥试验锯材的皱缩现象最严重，波动2时次之，波动6时干燥试验锯材的皱缩缺陷最小。

Heartwood, Bignoniaceae plants Filar Wood Phyllarthron comorense DC.

心材，紫葳科植物菲拉尔木（ Phyllarthron comorense DC。

A spiny Asian treehaving bipinnately compound leaves, spike s of yellow flowers,and dark heartwood.

儿茶树一种亚洲生多刺木，有两羽状复叶、穗状黄花和深色心材

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。