名词
中文翻译：四密度
同义词：
['四倍密度，四倍浓度例句：1. The new drug hasa four-density formulation thatis more effective than its previous version.（这种新药采用了四密度配方，比之前的配方更有效。）2. The researchers found that the four-density particles could be usedto detect cancer cells in the body.（研究人员发现，四密度颗粒可以用来检测体内的癌细胞。）']
例句：
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1. The new drug hasa four-density formulation thatis more effective than its previous version.
这种新药采用了四密度配方，比之前的配方更有效。
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2. The researchers found that the four-density particles could be usedto detect cancer cells in the body.
研究人员发现，四密度颗粒可以用来检测体内的癌细胞。
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3.The four-density model isdesigned to simulate the behavior of complex systemswith multiple variables.
四密度模型旨在模拟具有多个变量的复杂系统的行为。