As the number of moisture droplets increases, they begin to coalesce into small rivulets of fluid.

当水滴数量增加，它们会汇集成细流。

《柯林斯英汉双解大词典》

Operations to split and to coalesce chunks take time.

用于分割和合并块的操作需要花费时间。

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Asteroids are chunks of rock from "failed" planets, which never managed to coalesce into full-sized planets.

小行星是来自“失败”行星的岩石块，无法凝聚到已成型的行星中。

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That's why they've been slow to coalesce around a more boring, rational candidate like Mitt Romney.

CNN: Why Romney is stronger than he seems

They cannot seem to coalesce behind a set of policies or leader to take on Mr Berlusconi.

BBC: Defiant Berlusconi calm amid storm

The "appeasement" flap, however, has give the Democratic Party its first real chance to coalesce behind Obama.

CNN: Obama-McCain flap a taste of what's ahead?