Variable density and thickness according to different climates.
变密度和厚度可根据不同的气候。
In this paper a new method for making circular variable density filters is proposed.
本文提出一种制备圆形渐变衰减片的新方法。
A variable density based topology optimization method was applied to the light-weight design of engine block.
将变密度拓扑优化方法应用于发动机气缸体轻量化设计中。
This conclusion lays a foundation for the research to variable density perforation in well completion optimization.
该结论为完井优化中的变密度射孔研究奠定了基础。
You can switch variable density OFF to allow any swings in the solution to stabilize, and then restart the analysis.
可以关闭易变的密度使求解稳定，然后重启分析。
The finite element analysis (FEA) and the variable density methods were used. The optimization method and process were presented.
采用有限元法与变密度法，给出了优化方法和步骤。
It is necessary to record the linear scale before and after log and the time difference curve in the acoustic variable density log.
摘要阐述了声波变密度测井时对其进行测前、测后线性刻度及记录时差曲线的必要性。
It is necessary to record the linear scale before and after log and the time difference curve in the acoustic variable density log.
阐述了声波变密度测井时对其进行测前、测后线性刻度及记录时差曲线的必要性。
The status for acoustic variable density log in Daqing Oilfield is introduced including applied techniques and logging tool levels.
介绍了大庆油田声波变密度测井的现状、应用的技术和仪器的水平。
A cementing method of separable setting and variable density is used, with two level controls of safety valve on the ground and downhole;
采用双凝固井、变密度固井方式，均采用地面和地下两级安全阀控制；
The simulated variable density log map shows many important features of reflected waves, which are the base for identification of the reflected wave.
用模拟的变密度波形图显示了裂缝反射波的许多特点，这些特点是正确地识别和处理反射波的重要根据；
Although variable density also gives an intuitive interface to reflect changes of geometry, yet it is not as clearly as variable area in stratification.
变密度剖面显示技术能够直观地反映界面形态变化，但不如变面积显示的剖面反射层次清晰。
The structural topology optimization method—variable density method is used to optimize the topology of an acoustic_box for interior sound pressure reduction.
基于变密度拓扑优化方法和声-结构耦合系统有限元模型，对四角固支箱体模拟的飞机座舱进行了减振降噪分析。
The variable density model is more suitable for inversion of Moho depths structures than constant density model by comparison of Moho depth from seismic inversion.
通过常密度模型、变密度模型及地震反演得到的莫霍面的比较，证实变密度模型更适合于莫霍面结构的反演。
By variable density method, an optimal topology model is established with the help of the software ANSYS to support the optimal topology design of the horsehead pumping unit.
文章应用有限元分析软件ANSYS。采用变密度法建立拓扑优化模型，对抽油机驴头进行拓扑优化设计。
The variable density multilayered crustal model is put forward according to the idea of model decompose in this paper, and the corresponding gravity forward formula is deduced.
根据模型分解的思想，采用变密度多层地壳密度模型，据此推导了相应的重力异常正演计算公式。
It is not suitable to dodge with the variable density plate in consideration of the rigour environment in space while adopt the adjustable Iris diaphragm with high reliability.
由于空间恶劣环境影响，不适宜采用变密度盘调光，而采用可靠性高的可变光阑。
By the way, for the case of variable density, specific heat as well as thermal conductivity, we have been successful to deduce other similar six heat transfer differential equations.
又对于变密度、变比热、变导热系数这样的更一般的情况也推立了六个二阶热传导的微分方程。
Based on finite element method, variable density method was employed to optimize the configuration of adherends in overlap region, and the curve fitting was applied to attain proper configuration.
在有限元方法的基础上，利用变密度法对单搭接胶接接头搭接区域的被粘物形状进行了拓扑优化，通过曲线拟合得到了较为合理的轮廓。
Then the distribution model of elevated road pollutant concentration was established, taking vehical density as the main variable.
根据分析结果，以车密度为主要变量，建立了高架道路污染物浓度分布模式。
Single age variable stock volume growth model had low coefficient of determination, but it was improved a lot by introducing site index and stand density index in reparameterization.
林龄单因变量的蓄积量生长模型决定系数低，引入地位指数和密度指数再次参数化的生长模型可显著提高模型拟合度。
The model considered the influence of the crowd density on the evacuation capability, and the capacity of the egress was taken as a variable rather than a constant as former.
模型中考虑了人群密度对疏散能力的影响，改变以往把建筑出口疏散能力视为常数而带来的不能真实反应其疏散能力的状况。
When a inverse function of monotone function can not show the explicit formula, the distribution density curve of continuous randon variable can be gained with a parametric equation.
当单调函数的反函数不能显性表示时，连续型随机变量的分布密度曲线仍可通过参数方程的形式获得。
This section of the course develops the mathematical concepts used in statistics. Three ideas are essential: Random Variable, Density Functions, and Expectations.
此部分课程扩展了统计学中的基本数学概念。三个基本想法如下：随机变数，密度函数与期望。
A discrete method for stochastic variable (features) space of class-conditional-probability density and estimation method for class-conditional -probability distribution is proposed.
本文提出了类条件概率密度随机变量（特征）空间离散化及类条件概率分布估计方法。
It also gives out a variable coefficient density compensation formula used for measurement of mass flow of the low pressure saturated steam, and the features of this formula.
给出了一个用于低压饱和蒸汽质量流量测量的变系数密度补偿式和该补偿式的特色。
When mechanical energy density is variable with time in an object, the mechanical energy flow is bound to follow the transmission of mechanical energy.
物体中机械能密度随时间变化时，伴随着机械能的传递，将存在机械能流。
In order to explore the change of pseudo-density to the effect of material rigidity and set up the relation between them for density variable method, we presented FEM to deal with the problem.
为了探讨变密度法中伪密度的变化对材料刚度的影响，并建立两者之间的力学关系，本文采用有限元法研究这一问题。
The equations feature variable frost density. Meanwhile mass transfer coefficients used in prediction are derived from the published experiment data, which used to be based on Lewis analogy.
在支配方程推导及求解过程中，采用了霜层变密度分析并引入了据试验数据拟合的传质系数。
The rigid body model of single suspension magnet are established with flux density as state variable and the system stability is analyzed with flux feedback control.
建立以磁场强度为状态变量的单悬浮电磁铁刚体模型，分析磁通反馈控制下系统的稳定性。
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