Write the correct preposition.

Besides theoretical and training preparation all the students KSMA have a possibility of taking their practice in the studying workshops and sailing practice both their own training ship OM-106, and on the ships of foreign and national companies. One of them is the ship carrying heavy non-dimension loads “HR Constellation”, which is provided the crew by the company “Marlow Navigation”. On this ship the students can not only strengthen their knowledge, but continue their education a specially-equipped laboratory.