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[求助] 润色一句话【英译汉】,谢谢。

Grain growth is generally based on the fact that polycrystalline materials are thermodynamically unstable. They undergo continuous coarsening driven by a reduction of the total Gibbs free energy of the system, where it is conventionally assumed that only the grain boundaries contribute to the reduction via the decrease of the total grain boundary area.
【翻译】晶粒生长通常是基于多晶材料在热力学上不稳定的事实。受系统吉布斯自由能减小的驱动,晶粒(才能)连续长大。由于总晶界面积的减小,通常认为只有晶界对自由能减小有贡献。
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