This in-rushing air also rises, and in some cases, especially when there is extreme thermal instability, begins to rotate.
这种涌入的空气也会上升，并且在某些情况下，尤其是在极度热不稳定的情况下，开始旋转。
| 单词 | Thermal instability |
| 释义 |
Thermal instability
原声例句
老托福听力93篇集锦 This in-rushing air also rises, and in some cases, especially when there is extreme thermal instability, begins to rotate. 这种涌入的空气也会上升，并且在某些情况下，尤其是在极度热不稳定的情况下，开始旋转。
英语百科
Convective instability（重定向自Thermal instability）
In meteorology, convective instability or stability of an air mass refers to its ability to resist vertical motion. A stable atmosphere makes vertical movement difficult, and small vertical disturbances dampen out and disappear. In an unstable atmosphere, vertical air movements (such as in orographic lifting, where an air mass is displaced upwards as it is blown by wind up the rising slope of a mountain range) tend to become larger, resulting in turbulent airflow and convective activity. Instability can lead to significant turbulence, extensive vertical clouds, and severe weather such as thunderstorms. |
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