实验结果表明:二斑叶螨卵期不存在密度效应;
通过本文的研究既检验了林窗动态模型又印证了林分密度效应理论。
This not only tested the forest dynamics model but also verified the theory of stand density effect.
对在无自然稀疏和有自然稀疏状况下有关植物群落的竞争密度效应的两个倒数方程的差异进行了理论分析。
The differences between the two reciprocal equations of the competition-density effect in nonself-thinning populations and self-thinning populations were analyzed theoretically.
城市轨道交通虽然具有诸多优点,但要使其发挥运输业网络经济的密度效应和幅员效应,我们还有相当长的路要走。
Although urban rail transit has considerable advantages, it still has a long way to go until it exerts density effect and dimensionality effect of the cyber economy.
研究了新玉9号正交种的密度效应,结果表明:1经济产量—密度方程呈渐近线型,经济系数—密度方程呈指数下降型。
We studied the density on Xinyu no. 9. The result showed that: 1 Economic yield density assume asymptote model; Economic coefficient density, exponential decay curve.
以光照为主要依据建立了研究框架模型,对草坪植物a的密度效应及其杂草分布情况进行了研究。分析了A草密度与杂草分布之间的相互关系及其生态学成因。
The study was carried out on the density effect of lawn plant a and the distribution of weeds around it with the frame model mainly according to sunlight.
热辐射密度以核爆点距离平方倒数的速度衰减,爆炸、冲击波、致电离辐射效应的衰减速度则更快。
The intensity of thermal radiation decreases only as the inverse square of the distance from a nuclear detonation, while blast, shock, and prompt ionizing radiation effects decrease more rapidly.
在约翰内斯堡,完全相同的射击既可能比球门飞得高也可能撞到人墙,因为更低的空气密度既降低了拖曳力也降低了旋转效应。
In Johannesburg, the exact same shot would either fly over the crossbar or hit the wall, as the lower air density reduces both drag and the effect of spin.
诱导效应可使羧酸中羧基碳原子的电子云密度发生改变。
Inductive effect causes electron density of Carboxylic cardon atom in Carboxylic acid to change.
锂电池具有体积小、能量密度高、无记忆效应、循环寿命高、高电压电池和自放电率低等优点。
Li battery have the good features of small size, high power density, no memory effect, long cycle life, high voltage and low self-discharge.
结果表明,尘埃等离子体中存在一种由引力非稳定性产生的凝聚效应,从而导致局域密度增大。
It is shown that there is a condensation effect in dust plasma that caused by the gravitational instability, so that the density increases locally.
密度对超级小麦表现出明显的调节效应。
Density shows obviously regulating effect on super wheat Angle index.
密度制约是植物种内竞争效应之一。
The density restriction is one of population competition effects.
提出了在强流直线加速器中,由空间电荷束团的密度分布所引起的非线性效应。
The nonlinear space charge effect due to the nonuniform particle density distribution in bunched beam of a linac is discussed.
当织物内外层单纤线密度比值相同时,若织物组织结构不同,其差动效应大小也不同;
The differential capillary effect differs in fabrics with same linear density of the inner and outer layers fiber but different weave structures.
结论氦-氖激光对培养瘢痕成纤维细胞生长的抑制效应与能量密度、照射次数有关。
Conclusion Inhibitory effect of He Ne laser irradiation on growth of scar fibroblasts is tightly associated with energy density and irradiation times.
本文研究了在初始密度差极小的情况下由双扩散效应引起的异重流的流动特性。
A gravity current flow of double - diffusive effects has been investigated under the condition of very small density difference.
这种蜃像效应,在大气分层的温度造成大气密度剧烈变化时最为显著。
The effects are most pronounced when temperature layers in the atmosphere produce sharp changes in air density and refractive index.
首先,给出了包含大气湍流内,外尺度效应的折射率功率谱密度函数。
Firstly, the power spectral density function of refractive index is given including the effects of inner and outer scale of the turbulence.
种群密度过高产生的拥挤效应和食物资源不足是造成种群出生率和年度增长率下降的主要原因。
The effect of crowding and physiological stress and shortage of food resources were the main reasons for the decline of population natality and yearly increase rate.
在低密度区域,三体核力重排贡献对同位旋对称势的影响相当小,然而随着密度的升高,三体核力重排效应的贡献显著增强。
At low densities, the influence of the TBF rearrangement on symmetry potential is rather small, and the TBF rearrangement effect becomes more and more pronounced as the density rises.
UCR有利于色彩密度和色度的良好再现,但会损失图像的反差和灰平衡效应。
UCR is conducive to the reproduction of density and saturation, but likely to lose contrast and gray balance of image.
聚集信息素不仅具有引诱聚集的作用,其种类和数量还具有调节其聚集密度的效应。
The aggregation pheromones can not only lead to aggregation, but also modify the density of aggregation.
固溶强化效应的增加、位错密度的提高及硬质相邻接度的减少被认为是固溶处理改善韧性的主要原因。
The reasons are mainly due to the increase of solution strengthening and dislocation density in the binding phases, and the decrease of bonding degree among of hard phases.
综述纳米粒子的结构特点及相关效应,并介绍了纳米粒子在超高密度信息存储方面的一些研究进展。
This paper briefly reviews structure characteristic and mutuality effect of nanoparticles. And the progress of nanoparticles in information storage is presented.
提出了依据宽带随机谱功率密度函数求解等效应力幅的半解析公式。
The semi-analytical solution for evaluating ESR from spectral density function of wide-band random loading is presented.
实际上密度的变化是收缩和膨胀两种效应综合作用的结果。
The variation of density is caused by the effects of shrinkage and expansion.
实际上密度的变化是收缩和膨胀两种效应综合作用的结果。
The variation of density is caused by the effects of shrinkage and expansion.
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