名词
中文翻译：固有粒径
同义词：
['intrinsic grain size', 'inherent particle size']
例句：
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1. The grain sizeof the sand is very fine.
沙子的粒径非常细。
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2. The grain size affects how easily the material can be processed.
粒径影响材料加工的难易程度。
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3.The engineer determined that the grain size was within acceptable limits.
工程师确定粒径在可接受范围内。