Command module and Exploratory ship

Command module noun - A space module in which astronauts can live and control the spacecraft and communicate with earth.

Exploratory ship and command module are semantically related in space module topic. In some cases you can use "Exploratory ship" instead a noun phrase "Command module".

Command module and exploratory ship are semantically related in space module topic. You can use "Command module" instead a noun phrase "Exploratory ship".