traversing gun造句

They originally housed a pair of traversing guns that fired " en barbette ".
On land a minimum crew of nine men ( usually commanded by a non-commissioned officer ) was required to fire the gun, which was normally mounted on a traversing gun carriage.
The eastern platform has pivots and racers for mounting four traversing gun carriages, one of which now houses a 12-pound smooth-bore artillery piece dating from 1815, mounted on a replica carriage.
After the ship successfully destroyed a harbour defence boom with her ram in 1885, the Royal Navy ordered two further ships of this class; but neither ship was built, probably because the deployment of quick-firing traversing guns made these vessels vulnerable.
As a result, the Grand Battery at Dartmouth Castle was rebuilt and retitled the Dartmouth Point Battery, with shell-proof, granite defences protecting three traversing gun emplacements looking out to sea, and a further two guns on the roof; one small howitzer protected the entrance to the harbour itself.
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