密度

According to the results of H. Vogt about the relationship between current density and cathode potential, the cathode current density of 3000A/m〓 is determined.

根据H.Vogt对电流密度和阴极电位关系的研究结果，选择电沉积铜的阴极电流密度为3000A／m〓。

The present numerical results indicate that:(1) the ablation shape and depth sensitively depend on the laser shape, pulse duration time and power density;(2) with laser power density in order of 109 W/cm2, ablation surface keep in consistent with spot size.

数值结果表明：(1)激光的脉冲形状、脉宽和功率密度直接影响烧蚀的形状和深度；(2)激光功率密度在109 W/cm2量级烧蚀面近似为光斑大小。

The commonner thread that play a base oh density board and high polymer two kinds, the comparison of density board fears water , cannot get blister .

比较常见的踢脚线哟密度板和高分子两种，密度板的比较怕水，不能受水泡。

The influence of wood flour particle diameter on melt flow rate and density of the composite were obvious.

木粉粒径对熔体流动速率和密度的影响十分明显，大粒径的木粉使复合材料具有较高的MFR和较低的密度。

This paper made a systematic research on Lonicerafulvotomentosa Hsu et S.C. Cheng, which grows well inkarst areas, from its biological characteristics, such asmorphology, growth and physiology. The main conclusions asfollows:(1)From the viewpoint of morphological anatomy, it hastypical xerophyte structures such as well-developed epidermisand tissues that transport water effectively, small leaf area,dense floss under the leaf surface, high stoma density, thesmall opening degree, thick cuticle, well-developed xylem andpalisade tissues, etc. The pollen of L. fulvotomentosa isseems to be spherical, and has 3 grooves, much bulge on theepidermis evenly. The shape of pollen is an important featureon taxonomy. The ripe fruit has from 1 to 18 seeds, some fruitbranch has 135 berry, its diameter is up to 0.8 centimeter.(2)From the viewpoint of growth, L.

本文从形态解剖、生长发育的节律、光合生理特性以及种子萌发生理等生物学特性方面对喀斯特适生经济植物黄褐毛忍冬进行了较为系统的研究，得出以下结论：(1)在形态解剖上，黄褐毛忍冬根茎中含有发育良好的周皮和输导组织，导管密度大，横截面宽，周皮的形成具有节制蒸腾、通气作用和保护组织免受外界环境影响的作用，宽的导管对水分的输导效率高；叶片密被绒毛，面积较小，气孔密度大、开度小，厚的角质层和发育良好的木质部和栅栏组织等是典型的旱生结构；黄褐毛忍冬花粉近球形，具3 孔沟，表面具均匀分布的小刺，刺间具网状纹理。

We have calculated the electronic structure and optical properties of zinc blende structure ZnSe under different high pressure by means of plane wave pseudo-potential methodwith generalized gradient approximationin this paper.The total energy,density of state,energy band structure,and optical absorption and reflection properties under high pressure are calculated.Furthermore,we analyzed the change of electron structure,band structure and optical properties under high pressure using the results of experiment and theory

运用密度泛函理论体系下的平面波赝势和广义梯度近似方法，利用第一性原理计算了不同的压强下ZnSe晶体闪锌矿结构，得到了它的平衡晶格常数、总能量、电子态密度分布、能带结构、光反射与吸收系数等性质，具体讨论了高压下ZnSe的电子结构，并且结合实验结果定性地分析了高压下的光学性质。

To find out the suitable medium, the optimization groups of hormone of NAA content and ZT content and the appropriate cultural density, the protoplast of two species of Jujuba trees have been cultivated by taking as subject the protoplast of non-kernel small date and egg-like dates embryonic suspension cells obtained by zymolysis, and by employing different mediums with different combination content of NAA, ZT hormones and culture density of protoplast.

以无核小枣和鸡蛋枣两个枣树品种的胚性悬浮细胞经酶解获得的原生质体为材料，采用不同种类的培养基、不同含量的NAA和ZT激素组合及不同原生质体培养密度对两个枣树品种的原生质体进行培养，以获得适宜的培养基种类、较佳NAA和ZT的激素组合及适宜的培养密度。

Using the DG index to measure the diversity of soil invertebrate assemblages was more reasonable than Shannon-Wiener Diversity Index in this case because the Acarina predominated in the samples which covered up the information of other soil invertebrate taxa, while the DG index is proposed on base of the hypothesis that every species has equal independence and importance in the community and could be compared with inter-community.

在本研究中，应用密度类群指数分析土壤无脊椎动物多样性的结果比应用Shannon-Wiener多样性指数的结果更为理想，这是因为土壤无脊椎动物由于组成结构复杂，不同类群的个体数量往往存在着巨大的差异，例如蜱螨目的较大数量常掩盖了其它类群的重要信息，多样性指数不能体现这一情况，而密度类群指数是基于各物种在群落中都有同等独立性，宜在不同群落间进行同种类比较的假设，对于复杂的土壤节肢动物群落多样性的测定可获得比较贴切的结果。

Lasius Tetramorium and Achaeta were the dominant groups that accounted for 49.20% of the total individuals. The results suggested that the types of land use affected the species richness and abundance, and human activity has a significant impact on the soil macro-animals community. Agricultural activity reduced soil macro-animal diversity, but did not change their vertical distributions in the soil profile. The results also showed that the differences in the composition of the soil macro-animal community between the middle plain and the west plain in Jilin Province were mainly explained by the dominant group density and rare group numbers in all habitats.

分析结果表明：大型土壤动物类群空间分布的广狭与个体数量的多寡在吉林省中西部平原区呈现出明显的一致性；中部平原区与西部平原区大型土壤动物群落组成存在显著差异；中西部大型土壤动物个体数量差异主要体现在优势类群方面，类群数量差异主要体现在稀有类群方面；土地利用差异明显影响大型土壤动物个体密度和类群数分布，其中农田和居民点园地土壤动物个体密度和类群数明显减少，但对土壤动物的垂直分布没有影响。

The current density of the un-pretreated sample attains 1.2mA/cm2,but the polished sample and polished acidly washed sample attain 3.2 and 2.75mA/cm2,respectively,at the electric field of 6.25V/μm.

在场强为6.25V/μm时，衬底未处理样品的电流密度为1.2mA/cm2，而衬底抛光的样品和衬底抛光又酸洗的样品的电流密度分别达到3.2和2.75mA/cm2。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。