Figure 2 shows a common horizontal cluster configuration.

图2显示了一个普通的水平集群配置。

youdao

A sample cluster topology is shown in figure 2.

图2中是一个示例集群拓扑。

youdao

For a cluster of size 2, two instances play the following roles.

对于规模为2的集群，两个实例扮演以下角色。

youdao

Today 33 cultural and natural sites located on the territories of the cluster countries are inscribed on the World Heritage List (3 sites in Armenia, 2 sites in Azerbaijan, 4 sites in Belarus, 1 site in the Republic of Moldova and 23 sites in the Russian Federation).

UNESCO: OFFICE IN MOSCOW

The nanotubes naturally cluster together into tiny bunches, and were found to be able to store 4.2% of their own weight of hydrogen.

ECONOMIST: Space-age soot