名词
中文翻译：实际密度
同义词：
['actual density', 'actual density of matter']
例句：
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1.The real density of the material is higher than expected.
材料的实密度高于预期。
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2.The actual density of the soil is an important factor in determining its fertility.
土壤的实际密度是决定其肥力的一个重要因素。
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3. The actual density of the liquid is lower than that of the solid.
液体的实际密度低于固体。