艾维瑞姆引述了所谓的“法国悖论”,“法国南部的人们即使常吃高脂肪食物,但他们心脏病发作几率却只有五分之一,我们还要说的是,芬兰人也经常吃高脂肪食物。
The people in southern France, even though they eat fatty food, they get almost one-fifth the rate of heart attacks as, let's say, the Finnish people who also eat fatty food.
现年77岁的奥尼卡·恩佐·维拉三年前加入了球队,在此之前常感到背部和膝盖酸痛。
Onica Ndzovela, 77, suffered back pain and sore knees before joining the team three years ago. "I am fresh, I don't feel any pain in my body, I can run."
对于甚至可以组合动画、声音和交互性的矢量绘图,则常使用 Macromedia的SWF/Flash在万维网上发布相关内容。
For vector drawings that can even incorporate animation, sound, and interactivity, Macromedia's SWF/Flash is common for content distributed on the World Wide Web.
本文将一维非定常不可压流体力学方程组,应用于整个低速透平压缩机系统。
The fluid mechanics equations of one-dimensional incompressible unsteady flow are adopted in whole low-speed turbo-compression system.
研究了在二维定常不可压流动状态下雷诺数和翼型厚度等参数对翼型气动特性的影响。
For steady incompressible flows, the effects of Reynolds number and thickness of airfoils on the aerodynamic characteristics are studied.
三维定常、非定常的计算结果表明本文的方法是有效的。
The results of three dimensional steady and unsteady flows show that the methods developed in the thesis are effective.
全面部骨折、陈旧性骨折等复杂的颅颌面骨折,常引起患者严重的三维颅颌面畸形。
Maxillofacial bone fractures always bring serious facial abnormality and functional obstruction to the patients.
非定常三维向量场可视化的难点不仅在于数据表现本身,还在于大体积数据的管理和组织。
The difficulty of unsteady three dimensional vector field data visualization stems from both data representation and management of large volume data.
文中采用冲击横流比拟概念,将绕旋成体的三维、定常、分离流问题转化为二维、非定常、分离流问题来求解。
By using the impulsion flow analogy, the three dimensional, steady, separated flow problem is reduced to the two dimensional, unsteady, separated flow problem for solution.
高速离心泵内的三维定常湍流流动计算结果不仅为诱导轮内部流场诊断提供数据,还指出了该泵中存在的部件设计问题。
The calculated results of three-dimensional steady flow not only offer the based dataset for flow diagnoses in the pump, but also indicate the design problem in some parts of the pump as well.
本文提出计算二维非定常位势流动的有限差分法,流动是因自由表面任意瞬间扰动所产生的。
A finite difference method is developed for computing the two-dimensional transient potential flow generated by an impulse on the free surface.
本文给出了在跨音速流动中,计算三维机翼非定常载荷分布的核函数法和计算结果。
A kernel function method and the results of computing unsteady load on three-dimensional wings in transonic flow are presented in this paper.
完成了超音速燃烧室内非定常准一维流的数值模拟研究。
A quasi one dimensional unsteady numerical analysis of supersonic combustor performance has been conducted.
本文采用二维可压缩非定常N-S方程模拟了带有上下开槽壁的跨声速二维管风洞中超临界翼型绕流的流场。
Transonic tube wind tunnel flows over supercritical airfoils with slots on both upper and lower walls have been simulated by using compressible unsteady two dimensional Navier-Stokes equations.
给出了一个基于一维定常积云模式的对流涡度参数化方案,并和天气尺度运动的计算结果作了比较。
A vorticity parameterization scheme for cumulus convection is derived by using a one dimensional steady cumulus model. The result is compared with that determined by synoptic-scale variables.
本文将这一复杂的物理化学和气体动力学过程简化为二维前向台阶分离区的准定常烧蚀问题来处理。
The problem of complicated physicochemical and aerodynamic process is simplified to one of two-dimensional forward-facing step of quasi-steady state ablation problem of the separation region.
本文提出了求解三维定常无粘可压缩流场问题的一种隐式时间推进法。
An implicit time-marching method is presented for computing the three-dimensional steady inviscid compressible flow fields.
在冷却剂渗流是一维不可压缩的(或一维定常的)条件下,热层的传热和烧蚀问题可以单独求解。
This paper points out that the thermal and ablative problems of the shield can be solved solely with the coolant flow only under one-dimensional incompressible or steady condition.
试验证明了PIV技术可以应用于被动振动非定常复杂流场的测量中,并对两维翼流体旋涡诱发振动响应进行了分析。
The experiment shows that the PIV technique can be utilized to measure the unsteady complex flow of passive vibration, and analyses the vortex-induced vibration.
本文基于一维非稳态多分支非定常流,建立了相应的数学模型,采用有限容积法理论对方程进行数值离散分析。
The thesis established the flow model based on one-dimensional, unsteady, compressible, Navier-Stokes equations, and discrete the governing equations using a finite-volume formulation.
构造了一维非定常自由面浅水流动的隐式守恒差分格式。
An Implicit conservative scheme for ID unsteady free - surface shallow water flows is presented.
但由于可压缩非定常位势流动的控制方程是双曲型的,简单地把时间当作同空间一样的物理维来求解是不可行的。
Because the governing equations for compressible unsteady potential flow is hyperbolic, looking time dimension as space dimension in the same way is never appropriate.
由于气流在喷管流动中具有复杂的三维非定常的特征,因此,建立其动态数学模型有着更为重要的工程及理论价值。
In order to obtain transient mathematical model as vectoring deflection which is very important in engineering and valuable in theory, three-dimensional and unsteady flow fields must be researched.
本文研究二维常系数反应扩散方程的紧交替方向隐式差分格式。
Secondly, a compact ADI difference scheme is presented by introducing a variable of intermediate value.
本文提出了利用定常卡尔曼滤波来实现任意一维平稳随机过程递推最佳滤波的方法。
This paper proposes a method for recursive optimal filtering of one-dimension stationary ran-dom processes by use of Kalman filtering of constant system.
为了研究层状冷云自然降水和人工降水的机制建立了一维非定常的数值模式。
An one-dimensional time dependent numerical model has been developed to study the mechanism of natural and artificial precipitation from the cold layer clouds.
建立了简化成二维定常不可压缩流体的离心泵叶片的边界层方程,并对相关量进行了分析。
The boundary layer equations of vanes of centrifugal pump in two-dimensional incompressible fluid are set up and the relevant quantities are analyzed in the paper.
文中利用一维等熵非定常气体的运动方程计算系统的各参数,并把所得参数作为设计和试验的参考数据。
Kinematic equation of one-dimensional isoentropic nonsteady air was used to calculate system parameters for reference of design and experiment.
控制方程是一维非定常气体动力学偏微分方程组,用隐式中心差分结合特征线法解算。
The numerical solution of the governing equations, pertaining to one-dimensional unsteady gas dynamics, utilizes an implicit finite-difference scheme combined with the method of characteristics.
控制方程是一维非定常气体动力学偏微分方程组,用隐式中心差分结合特征线法解算。
The numerical solution of the governing equations, pertaining to one-dimensional unsteady gas dynamics, utilizes an implicit finite-difference scheme combined with the method of characteristics.
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