On the hypothesis of isentropic flow and quasi-steady flow,a model of gas parameters in the storage chamber is established by a method of the lumped parameters.
在等熵流和准定常流假设条件下,采用集总参量法,建立了弹后高压火药气体通过小孔在弹体内气室与弹后空间之间流动的气体参数理论计算模型。
Results show that this model can simulate the summer quasi-stationary circulation systems of East Asia monsoon area comparatively well under the comprehensive effect of land - sea distribution, topography and model physical pIocesses etc.
利用P—σ混合坐标系5层区域气候模式，研究了东亚季风区夏季准定常环流系统的月平均气候特征及其时间演变，结果发规模式在一定的海陆分布、地形及模式物理过程等的综合作用下可以较好地模拟出东亚季风区夏季准定常环流系统的月平均气候特征，各高度上的主要环流系统以及高原地区的经圈环流与实际情况较为一致，准定常环流系统的时间变化主要发生在模式积分的前15天中，在此后的时间积分过程中环流系统的变化比较缓慢，大陆暖中心、低压中心以及季风强度指数等的时间演变和相关系数、均方误差及误差标准差的分析都能说明这一点。
Put forward a new method for long-span bridge buffeting analysis which using quasi-steady aerodynamic stiffness and unsteady aerodynamic damping based directly on wind tunnel test.
提出采用准定常气动刚度与基于试验的非定常气动阻尼进行气动修正的大跨度桥梁抖振计算新模型。
Numerical simulations on the quasi-steady and unsteady flow in Aachen 1-1/2 Axial-Flow turbine stages are performed in this paper, and the influences of the rotor-stator interaction on the fluctuating velocity, flow angle, wall-pressure and loss mechanism are discussed.
本文对Aachen一级半轴流式透平进行了准定常及非定常流动的数值模拟,讨论了引发动静干涉效应的主要因素,分析了非定常效应对叶栅通道中脉动速度、气流角、型面压力分布以及损失结构的影响。
The ray theory of geometric optics was applied to visually investigate the propagation of quasi stationary waves in time mean basic flow and interpret the zonal nonhomogeneity.
应用几何光学中的射线理论，直观地讨论了准定常波在时间平均基流中的传播，解释了定常波传播的纬向非均匀性。
Quasi-Unsteady Numerical Simulation of the Impeller-Volute Coupling Characteristics in Stamping-Welding Centrifugal Pump;
冲压焊接离心泵叶轮及蜗壳耦合特性准非定常数值模拟
Measurement of Intake Flowrate of ICE with Quasi-steady Flow Method
准定常流法测量内燃机脉动进气的瞬时流量
A GRAPHIC DETERMINATION OF THE DRIFT CONSTANTS IN DEBYE SCHERRER PHOTOGRAPHS AND THE ACCURATE EVALUATION OF LATTICE CONSTANTS
德拜-谢乐照相中测定流移常数的图解法与点阵间隔的准确测定
The above suggested method will avoid any sagging to secure the specified paint film thickness.
上述方法可以避免流挂等异常现象以保证实现指定的标准膜厚。
THE INFLUENCE OF EDDY VISCOSITY ON THE SUBTROPICAL PLANETARY-SCALE CIRCULATION IN SUMMER
涡旋粘性对于夏季副热带准定常行星尺度环流的影响
Anomalous Propagation of the Quasi-stationary Planetary Waves in the Atmosphere and Its Roles in the Impact of the Stratosphere on the East Asian Winter Climate
大气准定常行星波异常传播及其在平流层影响东亚冬季气候中的作用
master meter prover
标准流量计检定装置
master meter calibration unit
标准流量计标定装置
The Calibration and Uncertainty Evaluation of the Accurate DC Standard Current Source
高准确度直流标准电流源的校准与不确定度评定
Stationary Response of the Subtropical Circulation to Latent Heating in a Linear Quasigeostrophic Model.Ⅰ:Basic Quality and Characteristic Analysis
线性准地转模型中副热带环流对潜热加热的定常响应 Ⅰ.基本性质及特征分析
Verification and uncertainty evaluation of the DC low current reference source
直流小电流标准源的检定与不确定度评定
The Test Adequacy Criteria Based on Control Flow
常用的基于控制流的测试充分性准则
On transition criterion of Mach stem deformation for Mach reflections of pseudosteady strong shock waves
准定常强激波反射马赫杆突出变形准则的探讨
Research on Uncertainty and Flow Stability of Water Flow Standard Facility
水流量标准装置不确定度和流量稳定性研究
Numerical Simulation of 3-D Steady and Unsteady Flows in Whole Flow Passage of a Francis Hydro-turbine
混流式水轮机全流道三维定常及非定常流数值模拟
The Research of Unsteady Flow of Viscoelastic Fluid in Eccentric Annulus;
粘弹性流体偏心环空非定常流的研究
Time domain spectral methods for unsteady flow computations
时域谱方法用于内流非定常流动计算
To select beforehand, usually according to a specific criterion.
预选预先选择，通常根据特定标准
Locating Accurately and Accelerating the College s Development;
准确定位 抓紧建设 超越常规 快速发展