Self-contained

Saeb thinks mathematicians are self-contained walking pieces of heaven.

From every gesture and expression I could see that he was a reserved, self-contained man, with a dash of pride in his nature, more likely to hide his wounds than to expose them.

Astrobee consists of three self-contained, free flying robots and a docking station inside the International Space Station.

a self-contained apartment

The software is self-contained, and doesn't interface with anything except the user.

Self-contained underwater breathing apparatus

All these were based broadly on the management framework of the old companies, except that the former Southern and North Eastern Areas of the old L.N.E.R. became separate management units, while the former L.M.S.R. and L.N.E.R. lines north of the Border were fused into a self-contained Scottish Region.

Each of these can be further sub-divided into self-contained divisions; the technical research department, for example, includes Engineering and Chemical Divisions.

Whereas the history of the London Underground is generally very fiddly, the history of the Waterloo & City is blessedly self-contained and simple.

Merseyrail is, in effect, a self-contained network with eight termini. At six of these [...], passengers can transfer onto national rail network services.