sentences:  In 1936, an experimental twin 13.2 mm gun mount with a gun shield was added between the starboard 75-mm guns and more rangefinders were added to bring her total up to 31.Her boilers and condensers were repaired in a refit between 25 November 1936 and 13 March 1937.Later that year "Pluton" had a major refit that involved repair of her turbines, replacement of her 138 mm fire-control director by one of the type used by the light cruisers and the transfer of the foredeck 13.2 mm machine guns to positions on the forward superstrucut.