Objective To study the three dimensional characteristics of heart sound in children with myocarditis.
目的：通过心音三维分析了解小儿心肌炎的心音特征。
The characteristics of three dimensional astigmatic beams were discussed by using their second order intensity moments.
采用光束的二阶强度矩的方法讨论三维像散光束的光束特性。
Objective To study neonatal morphological characteristics of cranial base with clefts by three dimensional structures.
目的在唇腭裂新生儿三维重建体上研究颅基底形态结构特征。
Numerical simulations on particle mixing characteristics of spout-fluid bed were carried out in three dimensional based on discrete element method (DEM).
采用离散元方法，对喷动流化床内的颗粒混合特性进行了三维直接数值模拟。
Then three-dimensional geological and mechanical model was established, and study of spatial deformation characteristics with FLAC-3D (Fast Lagrangian Analysis of Continua) was detailed.
并建立了相应的三维地质力学模型，应用FLAC 3D快速拉各朗日差分程序对其空间变形特征进行了详细的分析。
Principle and characteristics of three dimensional fluidized bed electrode was introduced.
介绍了三维流化床电极的原理与特点。
Usingthe method of comparative observation, we studied the distributive characteristics of three dimensional architecture of the micro-circulatory vessels of skin.
本文应用光镜与扫描电镜对比观察的方法，研究了皮肤微循环血管三维构筑的分布特点。
To estimate the geometric characteristics, especially wet areas and section areas, of three dimensional numerical conceptual aircraft models, a method based on surface elements is proposed.
为了获取三维数值化概念机模型的浸润面积和横截面积等几何特性，本文提出了一种基于离散化面元的估算方法。
According to the characteristics of loads on blades, a model for estimating fatigue life of blades is presented based on three-dimensional finite element method and improved local strain method.
根据汽轮机低压叶片所受载荷的特点，建立了一种基于三维有限元法和改进局部应力应变法的叶片疲劳寿命预测模型。
The relationship between three-dimensional grain morphology characteristics and random cross-sectional parameters has been established based on the method of simulation slicing.
本文通过仿真切割的方法建立晶粒三维空间形貌特征与其随机截面形貌参数之间的关系。
Objective To analyze neonatal morphology characteristics of nasi-maxillary complex with clefts by three-dimensional structures.
目的对唇腭裂患儿鼻上颌复合体的形态特征进行三维立体的测量分析。
Under the body-fitted coordinates, a study of three-dimensional laminar flow and heat exchange characteristics of staggered round tube bank fin is carried out through finite difference method.
在适体坐标系中采用有限差分法对错排圆管管片式换热芯子的三维层流流动及其换热特性进行了研究。
The Working principle, structure characteristics and ion detection methods of a three-dimensional quadrupole ion trap are described.
介绍了三维四极离子阱的工作原理、结构特点和离子检测方法。
According to the actual structure characteristics of a cable-stayed pipeline bridge, a three dimensional finite element mathematical model is developed.
根据斜拉索管桥的实际结构特点，建立了三维有限元计算模型。
A calculation method based on three-dimensional model was developed to study the load bearing characteristics of externally pressurized spherical gas bearings with inherent compensation.
为研究环面节流静压气体球轴承的承载力特性，提出一种基于三维模型的计算方法。
A method to compute aerodynamic characteristics of three-dimensional transitive section of high speed wind-tunnel has been suggested.
本文提出了一种计算高速风洞三维过渡段的气动特性的方法。
A kind of implicit mapping mechanism was proposed according to the characteristics of pen-based three-dimensional modeling technology.
针对笔式三维建模技术的交互特征，提出一种隐式映射机制。
The projection iterative method (PIM) is used to analyze electromagnetic scattering characteristics of two dimensional and three dimensional electrically large conducting objects in this paper.
将投影迭代法应用于分析任意二维和三维电大导体目标的电磁散射特性。
A three-dimensional, baroclinic model with a free surface has been employed to study the circulation characteristics of the South China Sea (SCS) and its mechanism in summerby numerical experiments.
用一个三维、自由表面、斜压海洋模式，通过数值试验的方法对南海夏季的环流特征及其形成机制进行探讨。
A three-dimensional model was developed in this thesis, in which the lung airway tree's characteristics can be described better.
本文建立了一个更能反映肺支气管树三维特征的模型。
Finally, three-dimensional consolidation characteristics of structural loess is tested and analysed in the condition of true triaxial test.
最后，在真三轴试验条件下测试分析了结构性黄土的三维固结变形特性。
The complicated block have many characteristics such as too many sliding surfaces and distributing in three-dimensional space.
复杂块体具有多滑面、三维空间分布的特点。
Then the characteristics of frequency variation during the fatigue crack propagation process are simulated by three - dimensional dynamic finite element analysis.
并利用三维动态有限元模拟了点焊接头疲劳裂纹扩展过程中频率变化特性。
Thirdly, the bearing and deformation characteristics of single and group piles are investigated by means of axisymmetric finite element analysis (FEA) and three-dimensional FEA.
再次，运用二维轴对称有限元法以及三维有限元法，系统分析了挤扩支盘桩单桩和群桩的承载变形性状。
Based on aquifer characteristics, boundary condition and groundwater flow regime, the hydro geologic concept model and the three-dimensional groundwater flow simulation mathematical model was built.
并对含水介质结构、边界条件及地下水流态进行了研究，建立了水文地质概念模型，构建了三维地下水流数学模型。
I start from the concept and characteristics, will be the space right of the space object is defined as a three-dimensional space in the vertical and horizontal division of the limited space.
笔者从概念和特征入手，将空间权客体的空间界定为一个在三维空间中纵横划分的有限的空间。
Three-dimensional cell culture has been very significant in the fields of biotechnology, clinical medicine. This article is to present the recent characteristics and applications of these instruments.
三维细胞培养技术应用在生物医学、临床应用和生物制药等领域有重要意义，并讨论与其相关技术装备的进展和应用。
In order to study characteristics of the calciner, it is significant to simulate the three-dimensional flow in calciner with proper mathematical models.
为充分了解分解炉的性能，应用适宜的模型来模拟分解炉内部三维流场是很有意义的。
Special manufacturing processes make it possible to produce three-dimensional graduation structures, possessing special optical characteristics.
特殊的制造工艺使人们有可能产生三维毕业结构，具有特殊的光学特性。
Three-dimensional numerical study is conducted to investigate the heat transfer characteristics for jet impingement cooling configurations.
采用数值模拟方法对冲击冷却的流动和传热过程进行了三维数值研究。
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