名词
中文翻译：亚粒
同义词：
['subcrystal', 'subcrystalline例句：1. The grain was so fine that it could be seen through the microscope.（谷物非常细，可以通过显微镜看到。）']
例句：
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1. The grain was so fine that it could be seen through the microscope.
谷物非常细，可以通过显微镜看到。
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2. The subgrain structure of the material is crucial for its mechanical properties.
材料中的亚粒结构对其机械性能至关重要。
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3. Subgrains are smaller grains within a larger grain that can influence the overall strength and toughnessof the material.
亚粒是大颗粒内部的更小的颗粒，可以影响材料的强度和韧性。