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The developing-country bloc has coalesced in stages since 1964 .

1964年以来，发展中国家集团已经逐步联合起来。

In the early universe clumps of dark matter are thought to have attracted gas , which then coalesced into stars that eventually assembled the galaxies we see today .

在早期宇宙中，暗物质的团块被认为会吸引气体，然后联合起来成为恒星，而最终聚集成我们今天看到的星系。

Debris from the collision coalesced to form the moon .

碰撞产生的碎片结合形成了月球。

But a coalesced star does not follow the same rules .

但是一颗「融合星」并不依循相同的规则。

Once the molten debris coalesced into the moon , the theory goes , its crust solidified over several hundred million years .

进一步的理论说明，一旦熔化的碎片合并到月球上，月球的地壳凝固时间超过了几亿年。