1) Density of utility
效用密度
2) density effect
密度效应
1.
Analysis of density effect of young plantation of Quercus mongolica;
蒙古栎人工幼林密度效应分析
2.
Study On Density Effects of Forest Growth for Masson Pine Plywood;
马尾松胶合板用材林生长的密度效应
3.
The law of increasing density effect of crop and its significance;
作物密度效应递增律及其意义
3) effective density
有效密度
1.
Effective density in loose sandy sediment and the bottom reflection loss;
松散沉积物的有效密度及其声压反射损失
2.
the effective density of pellet flocs ρ e, turbidity of supernatant SSt is found.
采用结团凝聚的原理对洗煤废水进行了实验研究 ,得出了凝聚剂 PAC、助凝剂 PAM和水流上升速度Uw 对结团凝聚两个重要分析指标即有效密度 ρe、出水浊度 SSt的影响规律 ,并得出 PAC、PAM和 Uw 适宜范围 。
3.
The fractal dimensions of PFC-HA flocs in different topological spaces were calculated from their effective density-maximum diameter and image analysis.
结合Logan公式和有效密度-长轴的双对数关系计算出的絮体三维空间的分形维数Df较为可靠,在本试验中3种pH的原水下形成的PFC-HA絮体的Df均小于2。
4) density-dependent effect
密度效应
1.
The density-dependent effects of the experimental population of Panonychus citri on the leaves of Zanthoxylum bungeanum were studied at(25±1) ℃,RH 75%±5% and photoperiod of 14∶10(L∶D).
系统研究了花椒全爪螨实验种群的密度效应。
2.
A systematic study was made of the density-dependent effects of the experimental populations of Schizotetranychus bambusae Reck at 25℃±0.
系统研究了竹裂爪螨实验种群的密度效应 ,结果表明 ,竹裂爪螨卵期不存在密度效应 ,在卵密度为 5～ 6 0粒 /叶 ,温度 2 5℃± 0 。
6) effect yield
效应密度
1.
It was developed by the data of crop density experiment that the effect yield of crop individual progressively decrease and the density effect progressively increase as the effect density progressively increase under otherwise identical conditions.
根据作物密度试验材料,分析发现在同一的条件下,随着效应密度递增,作物的个体效应产量递减,密度效应递增。
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