convection layer的用法和样例：
例句
- This confirms the idea that the mechanical waves generated from the convection zone are not very effective in heating the chromosphere and corona.
这就证实了一些人认为的对流层机械波并不是一个对色球和日冕的有效加热机制的说法。 - The thick and steady inversion layer in the mid tropospheric and low-layer cold layer were the direct cause of large-scale frozen rain.
深厚而稳定的对流层中层逆温层和低层冷层的存在是大范围冻雨出现的直接原因。
