The deep sea typically has a sparse fauna dominated by tiny worms and crustaceans, with an even sparser distribution of larger animals.
深海通常有稀疏的动物群,以微小的蠕虫和甲壳类动物为主,更大的动物分布更少。
But then, at about four, the rain brightens, becomes sparser.
接下来,大约四点钟,雨点渐渐稀疏了,天色亮了起来。
With this third rule added, the model accurately reproduced the dynamics of dense crowds as well as those of sparser ones.
加上了这第三个规则,该模型准确地再现了密集人群的动态,以及稀疏人群的动态。
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