名词短语
中文翻译：灰色黑色石灰岩粉末干磨
同义词：
['gray-black limestone powder', 'dry-ground limestone powder']
例句：
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1. The grey-black limestone powder is used in the production of building materials.
这种灰色黑色石灰岩粉末用于建筑材料的生产。
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2. The dry-ground limestone powder has a high hardness and good wear resistance.
干磨石灰石粉末硬度高，耐磨性好。
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3. The grey-black limestone powder was ground into fine particles for better mixing with other materials.
将灰色黑色石灰岩粉末磨成细粉以便与其他材料更好地混合。