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physical model of arch rib 拱肋实体模型
In the design of aeroelastic model of long-span concrete-filled steel tube arch bridge, the method of using an equivalent mandril to simulate the stiffness of whole arch rib is mainly used at present. 摘要对于超大跨度钢管混凝土拱桥，由于受模型缩尺比所限，通常在气弹模型试验中不能单独模拟出拱肋中单根钢管的刚度，目前常采用集中刚度法用一个芯棒模拟整个钢管桁架的刚度。
The physical model and mathematical model of casing-cutting using premixing abrasive water jet are presented. 基于能量原理，建立了前混式磨料水射流切割套管的物理模型和数学模型。
A physical model of a dual-infeed HVDC and VSC-HVDC system was set up, and its mathematical model was developed. 建立HVDC和VSC-HVDC双馈入系统的物理模型，导出相应的数学模型。
The physical model and mathematical model of casing cutting using premixing abrasive water jet are presented. 基于能量原理,建立了前混式磨料水射流切割套管的物理模型和数学模型。
The physical model and the linear mathematical model of a typical servo valve-controlled tilting car are builtup. 建立了典型伺服阀控摆式车辆动力系统的物理模型和线性化数学模型。
Based on first-order optimization calculating theory,authors established the optimal finite element model of swivel construction of arch bridge adopting hydraulic sync elevation technology. 根据一阶最优化计算理论,构建了采用液压同步提升技术进行转体施工拱桥的优化有限元模型。
The physical model of narrow slit has been adopted to simulate groundwater movement and it has many excellences in visualization and intuition. 采用窄缝槽物理模型来模拟地下水运动,具有形象、直观的优点。
A physical model of the flow regime transition from bubbling to turbulent fluidization was proposed on the basis of mechanismic experiments. 以机理实验为依据,提出了一个描述气-固流化床中从鼓泡流态化向湍动流态化流型转变的物理模型。
The bottom hole flow physical model of a kind of PDC coring bits is established considering the effect of junk slot and teeth layout in this paper. 以一种现场常用的PDC取心钻头为原型,充分考虑排屑槽和切削齿对于井底流动的影响,建立了与实际相接近的PDC取心钻头井底流场的物理模型。
The physical model of self-collapsibility is built on the base of its mechanism, andthe method for self-collapsibility is carried out. 在水玻璃砂自溃散机理的基础上，建立了水玻璃自溃散的物理模型，提出了低温区水玻璃砂自溃散的思路。
Abstract： The physical model and mathematical model of casing-cutting using premixing abrasive water jet are presented. 摘要：基于能量原理，建立了前混式磨料水射流切割套管的物理模型和数学模型。
He showed us a model of the new office building. 他给我们看了新办公楼的模型。
The physical model of 5-Axis sensor with 4-SPS &1-UPU structure are constructed using the theory of physical model of the solution space, then the indices atlases are plotted. 结合空间模型理论建立了4-SPS &1-UPU结构五维力/力矩传感器的空间模型，绘制了各项同性的力/力矩与结构尺寸关联的性能图谱。
In this paper, fistly, the combustion and flow in solid fuel ramjet are analyzed, the physical model of the double-cone inlet and combustor within SFRJ are established. 本文首先分析了固体燃料冲压发动机内的流动和燃烧现象，采用双锥型扩压器的进气道和燃烧室模型；
He made a clay model of the Eiffel Tower. 他做了一个艾菲尔铁塔的黏土模型。
A two-dimensional (2D) physical model of reactive ion etching (RIE) which includes isotropic and anisotropic components is presented.The physical model is analyzed. 摘要反应离子刻蚀(RIE)的二维物理模型，包括各向同性和各向异性两部分。
His mother is a model of industry. 他母亲是勤劳的模范。
A physical model of the automatic control system of a pump-fed Liquid Rocket Engine (LRE) is constructed, for which a nonlinear mathematical model is built. 摘要以能多次启动的某泵压式液体火箭发动机的自动控制系统为研究对象，构造了液体火箭发动机自动控制系统的物理模型，并对其建立了非线性的数学模型。
This paper presented a new physical model of space potential inside two concentric cylindrical silos,and got a function of the maximum potential inside this construction. 提出并建立了同轴双圆柱料仓结构电场分布物理模型,给出了内外圆柱间的最大电位方程;提出了如何使内外圆柱间的最大空间电位降至最小的设计思路与技术路线;