It is made up of a double encircling wall and rectangular towers.

Methods and apparatus for a bi-directional dual chamber orifice fitting comprising a body with a chamber in fluid communication with a flow bore.

They then reach a labyrinth-like space surrounded by a double circular enclosure.

This is a double enclosure structure built on big rocks.

The construction of the castle of Fayrac, encircled with a double enclosure, began in XIIIth century.

The building housing the EPR reactor comprises a double-wall containment.

The community has elevator, surveillance by camera and double enclosure.

It is today in a good state of conservation and comprises a double enclosure.

The community has an elevator, surveillance by camera and double enclosure.

In one embodiment a dual chambered back pack serves to store a user's urine and in a separate sanitary chamber provide the user with a potable fluid and/or liquid food source.

The sheer cliff face being sufficient to discourage any assault from that side, the defences were built up on the plateau: double crenellated walls, double moats, one of which was a deepened natural ravine, double barbican.

The sheer cliff face being sufficient to discourage any assault from that side, the defences were built up on the plateau: double crenellated walls, double moats, one of which was a deepened natural ravine, double barbican.

The sheer cliff face being sufficient to discourage any assault from that side, the defences were built up on the plateau: double crenellated walls, double moats, one of which was a deepened natural ravine, double barbican.

With double fence, wooden and electrical, where you can leave your horses during the day.

It is an ancient city of weavers, whose double-walled enclosure has been restored.