太空地质学家猜测这些陡坡是在几十亿年前当行星表面冷却收缩时开始形成的。

Astrogeologists suspect that these scarps having formed billions of years ago as the planet's surface cooled and shrank.

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地幔的运动类似于一壶沸水的运动，它把热的物质带到表面，再把较冷的物质带到深处，从而使地幔冷却。

The mantle's motions, analogous to those in a pot of boiling water, cool the mantle by carrying hot material to the surface and returning cooler material to the depths.

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使风暴表面冷却，减弱削弱风暴的威力。

This cools the surface and weakens the storm.

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