在三元相图中，每一种团簇与第三组元连接构成一条团簇线。

Each cluster was then connected to the third element in the ternary diagram to create a cluster line.

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在三元体系中团簇线为连接两元团簇与第三组元的成分直线，其中第三组元即是连接原子。

The so-called cluster line is incarnated into a ternary system a composition line linking a bianry cluster with the third element, where the third element is the glue atom.

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这些云朵可以组成单独的云簇，也可以沿着暴风线的冷锋分布。

The clouds can form alone, in clusters, or along acold front in a squall line.

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