density gradient
密度梯度：物质密度的梯度或变化率
常用释义
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基本释义
- 密度梯度：物质密度的梯度或变化率，通常用于描述空气、水或其他流体中密度的变化。
例句
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1·The SLM technique has a great potential in manufacturing density gradient parts.本文采用的SLM技术在密度梯度零件制造中具有很大的潜力。
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2·The titer was assayed and CsC1 density gradient centrifugation and purification were applied.测滴度并用氯化铯梯度离心纯化备用。
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3·The intrahepatic lymphocytes from each group were isolated by using density gradient centrifugation.密度梯度离心法分离肝内淋巴细胞；
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4·Hepatic endoplasmic reticulum was isolated by differential centrifugation with sucrose density gradient.采用蔗糖密度梯度离心法分离肝脏内质网。
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5·The eosinophils in broncho-alveolar lavage fluid (BALF) were separated by density gradient centrifugation.用密度梯度离心法分离并计数支气管肺泡灌洗液（BALF）中的嗜酸性粒细胞；
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6·This implied that the density gradient separation method was of low precision to separate RBCs of different age.提示用密度的差异对不同年龄红细胞进行分离，分辨率不高。
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7·White Spot Syndrome Virus (WSSV) was purified by sucrose density gradient centrifugation, and then labeled by FLUOS.采用蔗糖梯度离心方法提取对虾的白斑综合症病毒(WSSV)，用荧光素对病毒进行标记。
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8·The relationship between the density gradient and the strength of OSCP, and the structure of OSCP are also discussed.另外，对断面密度分布与板子强度之间的关系、复合定向刨花板结构也作了研究。
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9·BM MNCs were isolated from long bone of limbs in healthy Lewis rats by centrifugation through a histopaque density gradient.骨髓单个核细胞取自同系健康大鼠的四肢长骨，用密度梯度离心法获得。
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10·Coal maceral concentrates of high purity were prepared from four different rank coals by Density Gradient Centrifugation method.经等密度梯度离心分离，从褐煤、长焰煤、气煤和贫煤四种不同变质程度煤中获得了高纯度的有机显微组分。