density variation的例句大全

The establishment and prediction of the dynamic variation model of wood growth ring density for the plantation forest of Pinus koraiensis

人工林红松木材生长轮密度动态模型建立与预测

Both lexical variation and lexical density develop very fast, which might be due to TEM-8.

词汇广度和密度发展迅速可能由于英语专业八级考试的缘故。

Studies on Radial Variation in Density of Moso Bamboo Using X-ray Scanning

X射线直接扫描法研究毛竹材密度的径向变异规律

The porosity defect is that in certain area inside the cast ingot exist small cellular voids relatively equally distributed, slight difference in mechanical properties, obvious plastic volume deformation and variation of relative density governed by the spherical stress tensor.

疏松缺陷是一定区域上相对均匀分布着的蜂窝状小空洞，疏松区域上各处的力学性能相差小，表现为明显体积塑性变形，材料的相对密度变化主要依赖于应力球张量。

Accordingly, Stress Triaxiality, Strain Energy Density Factor and Maximum Circle Tensile Stress near the crack tip and their variation due to the circle angle variation can be derived.

根据内部裂尖附近的位移分量和应力分量可以得到裂尖的应力三维度，应变能密度因子以及裂尖附近的最大周向拉应力随着圆周角的变化而变化的情况。

species composition, distribution and density of copepods showed significant seasonal variation.

各样点种类数差异不大，但组成上却有不同。

seawater density effect on sea level height variation

海水密度对海面高变化的影响

the variation of the parameters is modeled by multivariate probability density function proposed by freeze, and the dynamic characteristics of soil are studied by monte carlo technique.

这些参数的变异性将通过Freeze提出的多变量概率密度函数来建立模型，通过Monte-Carlo技术对土的动力特性进行研究。

mechanism of the technology is made use of the absorption that material surrounding the fiber core interacted with the specific band evanescent wave. the material content can be detected through using variation of light density caused by the absorption.

其探测机理是通过传感区域围绕纤芯的待测物质对特定波段的倏逝波进行吸收，造成倏逝波的衰减，通过检测作用前后光强的衰减量，确定待测物质的含量。

the energy density spectrum and secular variation of the earth's main magnetic field

地球主磁场的能量密度谱及其长期变化

finally, the research reveals that variation in subgenres imposes no significant influence on the density of english and chinese global conjunctives in expository texts except for the obvious statistical distinction between the numbers of global conjunctives in chinese essay and speech.

三，除了汉语小品文及演讲中的连接成分在数量上有统计学差异外，连接成分使用密度在其它英汉说明文次体裁中的变化不大。

This paper report the corresponding variation between the apparent density of magnetic fluid and magnetic field.

研究了磁流体表观密度与外磁场间的变化规律.

There was isozyme variation in the grey-branch Chinese fir and-branch Chinese fir has large wood density.

灰枝杉同功酶谱有异、黄枝杉木材密度大等观点.

The formaldehyde emission values existed obvious variation within the middle density fiberboard.

同时,测试结果显示:一张板材内不同位置甲醛释放量值存在较大的差异.

There may be considerable variation in the distribution and density of ganglion cells.

这可以认为是神经节细胞在密度和分布上的变异.

Objective : To investigate the variation of the population density of Bandicota indica.

摘要:目的: 探讨板齿鼠种群的季节变动和年度变动.

Differences in Morphological Characteristics and Seeding Quality of Melia azedarach Seeds from Different Provenances Provenance Variation in Growth, Stem-Form and Wood Density of Masson Pine at 24-Year-Old and the Provenance Division

不同种源苦楝种子形态特征和播种品质差异研究24年生马尾松生长、形质和木材基本密度的种源变异与种源区划

Considering the influence of the convective mixing, the mixing of reservoir water surface layer by wind and the density current, the reservoir water temperature distribution and variation along with time may be computed by implicit form difference equation.

考虑对流、风掺和泥沙异重流的影响后，由所提出理论按隐式解法，可求解水库水温的分布以及与时间变化的影响。

The increase in species, variation in community structure and obvious recovery in relative biomass index and relative biotic density index of necton indicated that ecological environment of Yun-dang lake had been improved greatly by further comprehensive control and management since 1993.

游泳生物种类的增加和群落结构的变化以及相对生物量指数和相对生物密度指数的明显恢复，表明筼筜湖经过1993年以来的进一步综合治理，生态环境的改善是显著的。

Significant negative correlations between ring density and ring width were shown in the variation affected by clones.

年轮平均密度与年轮宽度的关系在年龄影响下的变异过程中分析，表现为不显著的负相关，而在无性系影响下的变异过程中分析，多数情况下相关显著。