本文扼要介绍了分形和分维的基本概念和最新进展；
The basic. concepts and the modern advances of fractals and fractal dimension are introduced briefly in this paper.
利用分形和分维理论研究DNA的复制机理并计算BDNA共聚物中氢键的解链温度。
The copy principle of DNA is studied by using fractal and fractal dimension theory and hydrogen-bond melting temperature in BDNA copolymers calculated.
运用分形和分维理论，用半方差法和功率谱密度法分别计算土壤强度的分维，其值接近2。
The fractal dimensions of soil cone indices were estimated in semi-variograms and power, spectral densities, which were all very close to 2.
本文建立了土体孔隙分布的分形模型，导出用分维和进气值表示的水分特征曲线和渗透系数的理论表达式。
By using this model the soil-water characteristics and permeability coefficient of unsaturated soil are deduced and expressed in fractal dimension and air-entry value.
应用分形理论计算的埕北30太古界潜山储集体花岗片麻岩和煌斑岩岩心构造裂缝的分维数分别为1。
Using calculation of fractal theory, the fractal dimensions of the core structure fracture in granite gneiss and lamprophyre in Chengbei 30 Archaean group buried hill reservoir are1.
然后用结构函数和均方根两种方法对理论和实际的轮廓曲线进行了分形表征和分维计算。
And then, fractal characterizations and dimension calculations were conducted in two kinds of profile curves with the methods of the structure function and the mean square root.
利用分形分维方法对黄河三角洲潮滩和潮沟的地貌特征进行了定量研究。
The morphologic characteristics of tidal flat and ti dal creek system in the Huanghe River Delta was studied by fractal geometry method.
用分形对3604S4工作面和回采巷道顶板进行了研究，得到了该工作面下沉速度的几种分维值。
Study was conducted on the roof of No. 3604S4 coal face and the actual mining roadway with fractals, and a few kinds of functional values of subsidence velocity of this face were obtained.
结果表明， 在单轴受压时，岩石破裂系和主破裂均表现出很好的分形性质， 分维随着压力增加而上升。
The results show that the fracture system and the main fractures of rock under uniaxial compression tests are of highly self similar characteristic in statistics.
结果表明， 在单轴受压时，岩石破裂系和主破裂均表现出很好的分形性质， 分维随着压力增加而上升。
The results show that the fracture system and the main fractures of rock under uniaxial compression tests are of highly self similar characteristic in statistics.
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