针叶树材
- 网络softwood
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针叶树材管胞气体渗透流阻及其渗透系数
The FLOW-RESISTOR and gas permeability of softwood tracheid
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东北针叶树材交叉场纹孔扫描电镜观察
Cross-field pits of northeast coniferous woods observed by scanning electron microscope
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针叶树材纵向气体渗透的三维流阻网络
The three-dimensional FLOW-RESISTOR network for longitudinal gas permeability of softwoods
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针叶树材和阔叶树材树种群材色级别的分布特征有一定的区别。
The grade distrbution of wood colour has defference for soft wood and hard wood .
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东北针叶树材超微构造观察
The ultrastructure observation of north-eastern coniferous wood
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针叶树材组织率的分析
Tissue Ratio of Conifer Wood
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11种针叶树材的切削厚度、刀具前角和木材含水率对切削阻力影响的研究
Studies on the effects of chip thickness , knife rake angle , and wood moisture content on the cutting resistance of 11 coniferous woods
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以往关于针叶树材气体渗透的模型或理论,只考虑针叶树材内气体渗透通道在1个或2个方向上的连接。
The existing models for gas permeability of softwoods only considered the connection of the pores in one direction of wood grain or two directions .
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用体视显微技术研究了6科18属42种针叶树材的组织率,结果表明:随着胞壁率增大,木材实质密度增大,而木材孔隙率减小;
An experiment was conducted to study the wood tissue ratio of 42 species of conifers belonging to 18 genera and 6 families using stereological microscopy .
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以海南省的2种针叶树材及15种阔叶树材为材料,进行了海口地区板材气干试验。
With 2 coniferous tree species and 15 broad leaved tree species as testing material , an air seasoning test of lumber was carried out at Haikou region .