This does not exist in Necromunda. This allows the unit to research technology for the purposes of building and using it. To start, the unit has limited capabilities to be able to build facilities and gear, as the campaign progresses their capabilities should grow.
To research, a ganger must be assigned to researching a topic. Some topics may be figured out quickly and some may take a longer period of time to research. There is a bit of randomness to the research to simulate the brainstorming of an idea or the mind-block of the thought process. More than one ganger can be assigned to research, but after the first there is a reduction in how much help the ganger provides.
The ganger rolls 1d6 for research each campaign turn (each ganger after the first adds +1 to the roll). This roll is added from turn to turn until the project completes. Once the research number hits the target number of the research, the project is completed. Half of any extra research can be applied to the next project (round up).