What do you mean by self-operated ship and * * * cabin ship?

Self-operated cabin, as its name implies, is a cabin operated by itself. * * * Space refers to the space where two or more shipping companies can use the same ship. For example, COSCO has signed an agreement with Maersk to allow shipping space. Then, on a certain route, COSCO containers can board Maersk ships. Of course, Maersk containers can also board COSCO ships.