The dynamical model included the effects of the earth non-spherical shape, atmospheric drag, solar radiation pressure as well as lunar and solar perturbations.
在建立动力学模型中，计及了地球扁球形的摄动、大气阻力、太阳辐射压的效应以及日月引力摄动。
The forest model is composed of a layer of discrete random different types of non-spherical particles, including the type of trunk, main branch, often sprawling and leaves.
森林模型是由一层离散随机的不同种类的非球形粒子构成，非球形粒子的种类要区分树干、主枝、旁枝和树叶。
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