Complex sentence: As it did not have a turret, but a fixed casemate mount instead for its main armament, the 105 nmm gun fitted could elevate from 19.5 ° to -5 ° and traverse from 10 ° right to 11 ° left of the centreline.
Split into simpler sentences: As it did not have a turret, but a fixed casemate mount instead for its main armament. The 105 nmm gun fitted could elevate from 19.5 ° to -5 ° and traverse from 10 ° right to 11 ° left of the centreline.