As a small-scale illustration of the artificial modification of physical weather processes, take the frost prevention in我们可举果园中防霜作为说明对天气的物理过程进行小尺度人工影响的例子。
The only small-scale weather modification other than local frost prevention is that of clearing an airport or airstrip o除局地防霜外，唯一的小尺度人工影响天气作业是清除航空港或简易机场上的雾。