An important 'philosophical' base of this text comes from systems thinking.

It is also an important base for manufacturing and agriculture.

The rainforest remains an important economic base for the local people.

Thus it is the most important base for the thermal budget.

She remained at that important Russian naval base for more than a month.

Since 1950 the town has been an important naval base.

It has been an important military base since the Roman era.

Agriculture remains an important economic base today just as it was in communal times.

It became an important naval base and later a commercial port.

The site was once an important base for Hezbollah fighters.