coalescence of waves

例句：

1. 1. The two countries have coalesced into a single superpower.
   这两个国家已经合并成一个超级大国。
2. 2. The scientistsare trying to understand the process of coagulation.
   科学家们正在试图理解凝固的过程。
3. 3.The union is expected to coalescearound a common vision for the future.
   预计联盟将围绕共同的未来愿景而团结起来。