名词
中文翻译：孔隙率
同义词：
['porosity', 'porosity ratio']
例句：
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1.The engineer calculated the pore space ratioof the soil sample.
工程师计算了土壤样本的孔隙率。
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2. Thenew paint has a higherpore space ratio than theold one.
新油漆的孔隙率比旧油漆高。
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3. Thepore space ratio isan important factor in determining thestrength of the material.
孔隙率是决定材料强度的一个重要因素。