A method calculating one body density matrix of nucleus in the mean field shell model is proposed.
提出平均场壳模型下原子核单体密度矩阵的一种计算方法，验证该方法的可靠性。
According to introduction of FE model of one bus body structure, the process of analyzing bus body structure based on ANSYS is illustrated in this paper.
通过介绍某型号大客车车身结构的有限元模型，阐述了利用ANSYS有限元软件对大客车车身结构分析的基本过程。
A one-dimensional hydrodynamic and water quality model for river networks is developed, according to hydraulics and water quality features of water body within a tidal river network.
本文根据潮汐河网地区水体的水动力、水质特性，建立了河网一维水动力学和水质耦合模型。
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