However, neither major element nor trace element geochemical characteristics can be explained by a simp le model of magmatic origin.
但是，无论是主元素还是痕量元素地球化学特征，均不能用单一的岩浆成因模型得到解释。
The SIMP method and the heat conduction analyze model are integrated to formulate topology optimization model of heat radiation structures.
运用密度惩罚法和热传导分析模型研究了散热结构拓扑优化模型。
The SIMP method and the heat conduction analyze model are integrated to formulate topology optimization model of heat radiation structures.
运用密度惩罚法和热传导分析模型研究了散热结构拓扑优化模型。
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