1) rational density
合理密度
1.
,reasonable and rational density of Caragana microphylla Lam.
本文以典型的黄土丘陵地区-山西省偏关县的柠条现有林为研究对象,对柠条的适生种、立地条件和合理密度进行了研究,并用多谱辐射仪探索了一套柠条林生物量研究的新方法。
2) Optimum density
合理密度
1.
Study On Optimum Density about Various Stories of Natural Broad-leaved Forests in Northern Fujian Province;
闽北天然阔叶林各林层合理密度的研究
3) reasonable density
合理密度
1.
Through detailed analysis on these involved factors,this paper puts forward the concept of reasonable density.
通过对这些相关因素的探讨,提出了合理密度的概念,并概括了不同的合理建筑密度值域和其适用范围。
4) appropriate density
合理密度
1.
Study on appropriate density of Pinus tabulaeformis and Robinia Pseudoacacia for soil and water conservation forests in Loess area;
黄土区刺槐和油松水土保持林合理密度的研究
5) Reasonable well spacing density
合理井网密度
1.
This paper derivates a method for calculating reasonable well spacing density of low permeable reservoirs through economic evaluation considering drilling investment, surface investment and oil sale income, and the interest of the three.
基于前苏联学者谢尔卡乔夫提出的计算最终采收率公式,并应用最小二乘法对井网密度常数进行回归,通过经济评价,综合考虑钻井投资、地面投资和原油销售收入以及三者的利息,推导出一种计算低渗透油藏合理井网密度的方法,并编写计算机程序得出结果,提高了预测精度,减小了运算误差。
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