All the land tortoise species formed a tight cluster of points in the upper part of the triangle; all the water turtles cluster in the lower part of the triangular graph.
所有陆龟品种都在三角形的上部形成一个紧密的点群；所有的水龟都聚集在三角图的下方。
This trio is part of a tight cluster of 16 galaxies, many of them being dwarf galaxies.
这三个星系是一个由16个星系组成的紧密星系团的一部分，这些星系中有很多都是矮星系。
The synchronous method involves tight integration of the database software with specialized HA software to produce a HA cluster.
同步方法要求数据库软件与专门化的 HA 软件紧密集成，以产生一个 HA 集群。
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