below-ground

the below-ground infrastructure included pipes and cables.

we found fascinating below-ground ecosystems during the expedition.

the below-ground storage facility kept the produce fresh.

archaeologists uncovered ancient artifacts below-ground.

the below-ground tunnel provided a safe passage.

they installed a new below-ground irrigation system.

the below-ground roots anchor the tree firmly.

the city expanded with new below-ground parking garages.

we explored the extensive below-ground cave system.

the below-ground water table is crucial for agriculture.

the construction project included extensive below-ground work.