英语语法分析

The density of the gases are low enough to allow convective currents to develop.

气体的密度低到足以形成对流。

At the solar surface, convective motions of heated gases jostle the magnetic field line.

在太阳表面，炽热气体的对流运动把这根磁力线冲来撞去。

Cumulus convective parameterization is one of the most important physical processes in numerical model.

积云参数化是数值模式中最重要的物理过程之一。