. . "Fixed installations are facilities which are intended to remain in a relatively constant orbit or position. They may take the form of space stations, such as starbases and shipyards, or they may be located on the surface of a planet."@en . "Fixed installations are facilities which are intended to remain in a relatively constant orbit or position. They may take the form of space stations, such as starbases and shipyards, or they may be located on the surface of a planet."@en . "Fixed installations"@en .