名词
中文翻译：颗粒内部
同义词：
['internal particle', 'intrastructure']
例句：
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1.The researcher found that the particles within the sample were not uniformly distributed.
研究人员发现样本内的粒子分布不均匀。
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2.The physicist analyzed the intraparticle forces in the material.
物理学家分析了材料内部的粒子力。
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3.The engineer designed a new intraparticle filter to improve air quality.
工程师设计了一种新型的颗粒过滤系统，以提高空气质量。