The boys' junior school had a separate system of four houses.
But when it is turned on, the computer automatically starts up two separate systems.
Experience showed that the two separate systems were too difficult to manage.
The massive system has three separate systems of power lines.
Why should they have the right to trial by a separate and much less severe legal system?
It's almost as if I have two separate solar systems here.
The separate governmental systems came together only in a joint court.
In addition, each water project maintains a separate financial system and records.
They're an entirely separate system that I have no access to.
The 10th floor has separate mechanical systems for the store below and the office building above.