Import

Import refers to the act of taking in or receiving goods/ressources, more often then not in exchange for payment of other ressources/goods which in general would be harder for the seller to aquire then the goods he exchanges; thus this presents a win-win situation in which various empires can join together in trade agreements for mutual benefits of themselves, each other, alliances and thus onwards.
 * Import can take place between worlds in the same empire; where two worlds produce different goods/ressource/ships  and the other produces goods/ressources which are required for the first world to produce its production. This is most commonly seen where an asteroid  or the like produces raw materials for a world which refines raw materials, or a refinery world which passes on its ressources to a shipyard world. This can be contained within world maintenance