原子核理论研究恒星的结构和演化﹐元素的起源和核合成﹐以及宇宙线问题。
The theoretical study of nuclear structure and the origin and evolution of stars elements of nuclear and cosmic ray problem.
核心资产库是软件生产线的核心组成部分，它随着组织业务、组织目标、技术革新以及时间等因素不断演化。
The core asset library is the most important component of software product line; it evolves esponded to organization business, origination object, technology renovation and time.
本文采用特征线方法和激波装配法，对磁流体中间激波在行星际空间的演化过程进行数值模拟。
Using the method of characteristics and shock fitting techniques, this paper simulates numerically the evolution of MHD (Magnetohydrodynamic) intermediate shocks in interplanetary space.
最后用改进的水平集方法对初始轮廓线进行演化而得到最终结果。
At last, the initial contour lines are evolved using improved level set method to achieve object boundaries.
最后用改进的水平集方法对初始轮廓线进行演化而得到最终结果。
At last, the initial contour lines are evolved using improved level set method to achieve object boundaries.
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