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We can predict how the universe will change with time if we measure the amounts or energy densities of the various components in the universe today.
我们能够预测宇宙如何随着时间而发生改变，这需要我们对目前组成宇宙的各要素的数量及其能量密度进行测量。
《TED-Ed》《TED教育》
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Hong Kong truly is a vertical city. Because of its geography, space is at a premium which means it has one of the highest population densities in the world.
香港的确是一个垂直城市。由于其地理条件，香港的空间十分宝贵，这意味着香港的人口密度在全球名列前茅。
《Chinese New Year》《中国春节》
双语例句
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I have a question about densities.
我对密度有个问题要问。
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These are the probability densities, right?
这就是概率密度，对吗？
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Permits different harbor water densities.
港水密度不同的许可证。
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They both had bone densities of a 77-year-old woman。
有一对23 岁的双胞胎姐妹参加了我们的研究项目，她们的骨密度相当于一个77 岁老妇的骨密度。
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They have high body densities and can't help but sink.
它们的身体密度很高，没有办法不下沉。
反义词
distribution
