1) Volume Measurement
材积计算
1.
Research of Image Process in Log Volume Measurement;
图像处理在木材材积计算中的应用研究
2) weight scaling
按重量计算材积
3) robert hartig's method
哈氏全林材积计算法
4) Tax based volume
计税材积
5) volume estimation
材积估计
1.
The existing problems to volume estimation in continuous forest inventory(CFI) in China are firstly analyzed in this paper.
从分析我国森林资源连续清查中的材积估计问题入手,提出为满足新世纪林业发展的需要,必须对目前用一元材积表估计材积的方法加以改进,并进一步补充完善材积表和生物量表等基础林业数表。
2.
All models of seven groups have high precision , the total and the mean relative errors for stand volume estimation are between ±1 % , the mean absolute relative errors are lower than 3%.
经检验,7个树种(组)的相对树高模型预估精度相当高, 用于材积估计的总相对误差和平均相对误差均在±1%以内,平均相对误差绝对值都在3%以内,最大误差也不超过±5%。
3.
The relative tree height curve models of 6 tree species groups in Tibet, that is Fir, Spruce, Cypress, Pine, Oak and other broadleaves, are established by using 554 sample plots of CFI in 2001 in Tibet All models have high precision for volume estimation, and can be used in various kinds of forest inventories in Tibe
经检验 ,6个树种组的模型 ,用于林分材积估计的总相对误差有 4个在± 1%以内 ,误差最大的柏木也未超过± 5 % ,预估精度相当高。
6) materials computation
材料计算
1.
Following, we described solid energy band theory which is one of the most successful and important theory in condensed physics, and materials computation methods with first-principle.
紧接着叙述了凝聚态物理学中最成功、最重要的理论之一——固体能带理论,以及在这一理论框架下的第一性原理的材料计算方法。
2.
In this paper, we first introduced computer molecular simulation status and development trend of materials computation with computer molecular simulation.
本论文首先介绍了计算机分子模拟,以及计算机分子模拟下的材料计算的现状及发展趋势。
补充资料:洪水调节计算(见水库调洪计算)
洪水调节计算(见水库调洪计算)
hongshui tiaojie洪水调节计算J ISUan 见水库调洪计算。
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