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The relationships of the loop length, stitch density and thickness of fabrics to yarn linear density were analyzed with the experiment data, and the fiber volume fraction of glass fiber plain knitted fabrics was estimated theoretically.

采用改变纱线根数的方法，利用横机编织了多种不同纱线线密度的玻璃纤维纬平针织物，并改变编织的弯纱深度，得到3种弯纱系列的试验用布20块。

Some of the contrast－polarity quadrochromatic in high density, to increase the level of the relatively small density differential is large, and more high low profile levels and low relief, such as surface relief of color film, production should contrive such images of light and shade of the main level of coordination, you can get a better copy reproduce the effect.

一些中高密度反差的原稿，中调层次较少，密度级差较大，而高低调层次较多且平缓，如逆光拍摄的彩色片，制作时应想办法使这类图像主体调的层次明暗协调，即可取得较好的复制再现效果。

In these areas is not allowed to carry out high-density building, because only for green building and ecological development of the region is the most effective way, and in here is that there will be low-density residential and other types of project?

在这些领域是不允许进行高密度的建设，因为只有对绿色建筑和生态区域发展的最有效方法是，在这里将有低密度住宅和其他类型的项目？

However, at home and abroad in accordance with the professional standards of construction planning, the scope of the existing low-rise low-density residential, there are low-rise high-density residential.

然而，在国内和国外按照专业标准的建设规划的范围，现有的低层低密度住宅，有低层高密度住宅。

In this paper, the reasons leading to poor development effects of Chaoyanggou low-permeability oilfield are analyzed, the relational expressions between recovery efficiency and well spacing density, considering the start-up pressure, are given. In the paper, the water flooding control degree, lower limit of reservoir permeability, effectively driving factor, and other parameters are studied, and their influence on the well spacing density is presented.

中文摘要：摘要：本文分析了大庆朝阳沟低渗透油田开发效果差的主要原因，给出了考虑启动压力条件下，采收率与井网密度的关系式；研究了水驱控制程度、油藏渗透率下限、有效驱动系数等参数对井网密度的影响；确定了朝阳沟油田合理井网密度界限。

The effect of pulp volume on the wear rate in lower pulp density is greater than that in higher pulp density.

矿浆浓度较低时，矿浆体积的变化对钢球磨损率的影响比矿浆浓度较高时的影响要显著。

By the lower spherical density, we calculate the packing measure of the self-similar sets. In this thesis, we get a relation between the packing measure and the lower spherical density.

对于填充测度的计算，本文从下球密度入手，在下球密度与填充测度之间建立了一个等式。

Compared to SOC density in the dry land, SOC density in paddy soils was 13 percentages higher with a lower variation coefficient between different regions.

不同用地方式下，水田耕层有机碳密度比旱地的平均高13个百分点，但水田有机碳密度的区域变异显著低于旱地。

Low-lying electronic states of the lutetium dimer (Lu2) were studied based on density functional theory using ten different density functionals together with three different relativistic effective core pseudopotentials. Relative state energies, equilibrium bond lengths, vibrational frequencies, and ground-state dissociation energies were evaluated.

用密度泛函理论方法研究了镥二聚体(Lu2)低能量电子态的性质，计算了电子态相对能量、平衡键长、振动频率以及基态解离能，考察了密度泛函性质、相对论有效势种类以及Hartree-Fock交换作用大小对计算结果的影响。

The breeding scale of hybrid snakehead (Channa argus♂×Channa maculate♀)waslarger and larger in south of China. Three important factors witch lead to low survivalrate was studied, including prey density, stocking density and cannibalism.

杂交鳢是乌鳢父本和斑鳢母本，通过杂交获得的F_1代，在苗种培育时期易发生残食现象，常使存活率大大降低，严重制约了杂交鳢大规模养殖和推广。

Finally it offers the analysis of the fault-tolerance system as well as its test verification.

这样，运行于空间环境中的系统的设计目标就是在保证系统实时性

However, it is still difficult to find out the real reason of the increase of the keratinized gingiva during the orthodontic extrusion whether it is due to the proliferation of the gingival tissue or to its elastic nature, that is because the proliferation of the fibroblasts as well as the connective tissue changes in volume and the intra-fibers spaces were all immeasurable in most of the studies.

然而，仍然难以找到真正的原因增加的角化牙龈在正畸挤压它是否是由于扩散的牙龈组织或其弹性性质，这是因为增殖的成纤维细胞以及作为结缔组织的变化量和内部纤维空格都是不可估量的，大多数的研究。