针叶树材

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

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

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

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 .

东北针叶树材超微构造观察

The ultrastructure observation of north-eastern coniferous wood

针叶树材组织率的分析

Tissue Ratio of Conifer Wood

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

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 .

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 .

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 .