Signals can travel below the soil surface, too.

讯息也可在地下传播。

We're collecting temperature data below the soil surface.

我们正在收集地表以下的温度数据。

Many soil bacteria and fungi ooze out sticky chemicals to glue themselves onto soil surfaces.

许多土壤细菌和真菌会渗出粘性化学物质，将自己粘在土壤表面。