1) density of the litter layer
木糠?层密度
2) wood density
木材密度
1.
Realization and utilization of two dimensional graph of wood density in triploid clones of Populus tomentosa\%.;
三倍体毛白杨无性系木材密度二维分布图的实现及应用
2.
93 15-year-old trees from the 31 provenances trial stand in Nanyu Forest Farm of Fujian Province were collected to deal with variations in bending properties of wood (modulus of elasticity and modulus of rupture) for exotic Loblolly Pine (Pinus teada) and their relationships to trees age, latewood percent and wood density in this paper.
树龄、晚材率和木材密度与MOE、MOR在0。
3.
Then the linear equation of log CT number and wood density was carried out.
使用计算机断层扫描技术进行原木无损检测,通过对原木树种断层 CT 值的统计,对 CT 设备在检测过程中的窗宽与窗位进行了设定,同时拟合出了木材 CT 值一密度值的线性方程,为原木缺陷的无损检测及木材密度的测定提供一种新方法。
3) standing tree density
立木密度
1.
The elementary characteristics of Alsophila podophylla population and their relationships with forest standing tree density and soil factors on Wuzhi Mountain;
五指山黑桫椤(Alsophila podophylla)种群特征与森林立木密度和土壤的关系
4) Wood gravity
木片密度
5) furfural lignin
糠尿木素
1.
We find the factors of influence on the compressive strength and gelatin time according to the study on sulphurized lignin,furfural lignin and phenolic lignin.
方法通过室内压缩试验、渗透试验等及现场试验研究,分析了无毒性木素类注浆材料的反应机理,对硫木素、糠尿木素、酚醛木素注浆材料进行试验研究。
6) saw dust extraction machine
吸木糠机
补充资料：非密度制约因素(见密度制约因素)
非密度制约因素(见密度制约因素)
l焦非密度制约因素见生态因素、密度制约后
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条