Two-dimension groundwater quantity and quality model in the vertical profile is made to carry out the simulation and analysis of nitrate-N pollution of the groundwater in the typical profile.
所建立的地下水垂向剖面的二维水量水质模型，对典型剖面中地下水的硝态氮污染进行了模拟和分析。
In static security analysis, the principal methods for static N-1 branch outage simulation include DC power method, compensation method and sensitivity analysis method.
在电力系统静态安全分析中，静态N - 1支路开断模拟的主要分析方法有直流潮流法、补偿法以及灵敏度分析法等。
The transonic turbulent flow around a blunt nosed and short body at large angle of attack was calculated and analysed by using numerical simulation method to solve the full N S equations.
采用数值模拟求解NS方程方法计算与分析了绕大钝头短体外形的跨音速大迎角时的湍流流动。
Main characteristics of statistical accuracy for P-S-N curves are analyzed and the method for mean square error of P-S-N curves parameters by computer simulation is brought forward.
分析了反映P SN曲线统计精度的主要指标，提出了P S N曲线参数估计量的均方误差计算机模拟求法。
A fast simulation environment has been developed using MATLAB and SIMULINK for behavioral level simulation of spread spectrum clock generator based Fractional-N frequency synthesizers.
提出了一种展频时钟生成的方法，使用MATLAB和SIMULINK开发出了快速模拟基于分数N型频率合成器的展频时钟生成器的环境。
Moreover, water has no obvious effect on the hydrogen isotopic compositions of individual n-alkanes in the simulation test.
热模拟实验中水的存在对热解烃中正构烷烃单体氢同位素组成并没有产生明显的影响。
To investigate the rolling control characteristics of canard-controlled missile with fixed-tail, a numerical simulation method based on N-S formulation was conducted.
采用以N-S方程为主控方程的数值模拟方法，进行固定尾翼鸭式气动布局导弹的气动特性和流场数值模拟。
Molecular simulation is used to calculate the diffusion coefficient of thiophene and n-heptane in PEG membrane.
并通过分子模拟方法模拟了噻吩和正庚烷在PEG膜中的扩散系数。
Numerical simulation shows that the time-step size can be set 100 times as large as that of the conventional FDTD method, while the C-N FDTD algorithm is still unconditionally stable.
算例也表明了当时间步长取为常规FDTD时间步长100倍时，该算法仍然是无条件稳定的。
The reliability tests both the axial fatigue and the biaxial fatigue of casing strings were designed by means of examination and numerical simulation, and the P-S-N curves were obtained.
运用可靠性方法，基于概率分析设计了单轴和双轴疲劳可靠性试验，得到了套管柱的单轴和双轴概率疲劳特性，推导出套管钻井的P — S —N 曲线方程。
The reliability tests both the axial fatigue and the biaxial fatigue of casing strings were designed by means of examination and numerical simulation, and the P-S-N curves were obtained.
运用可靠性方法，基于概率分析设计了单轴和双轴疲劳可靠性试验，得到了套管柱的单轴和双轴概率疲劳特性，推导出套管钻井的P — S —N 曲线方程。
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