He and this station were here to prevent contact between Earth and the galaxy.

Each of the 50 rooms is completely sealed to prevent contact with the outside world.

Or perhaps the Rigellian was under suspicion and they'd decided to prevent contact.

The magnets must be strong enough to prevent contact during the experiment.

Especially when he was not, as now, using any shields to prevent physical contact.

Their mechanism has it own protective shield, preventing physical contact.

It is often used for guarding to prevent contact with hot surfaces or machinery.

Designed to prevent contact with foreigners, it also restricted local sea activity.

And by far the most likely reason for preventing such contact is because it would undermine her position.

And just how do you prevent contact between inmates?