An engine's heat melts the fine-ground rock, which proceeds to encrust the cooler parts of the mechanism, stopping it from working.

发动机散发的热量能熔化微粒细小的岩石，随之分化的粉尘会裹住机器的冷却器直至使其停止运转。

youdao

An engine's heat melts the fine-ground rock, which proceeds to encrust the cooler parts of the mechanism, stopping it from working.

ECONOMIST: Volcanoes and air travel: Small eruption in Iceland | The

Meanwhile Google Earth, though it works just fine with a regular mouse and keyboard, cries out for experimenters to devise cooler navigation techniques.

CNN: Getting to grips with Google Earth