During parsing, these constraints operate by means of Prolog unification.

He operated this apparatus at a distance by means of a large radiator.

These operate on syntactically-typed lexical items, by means of Natural deduction style proofs.

The wheel operated the barrier by means of crude cables, that were badly in need of oil.

They called Susselein on the ship's communication system, which operated by means of time channel.

Many wall fans operate by means of a pull-chain mounted on them.

These operate by means of a simple valve which dumps all available pressure into the brake cylinder.

The computer "operated" by means of pencil and sliding cards.

An elevator is not a chute since it does not operate by means of gravity.

It includes sentences like, "Computers operate by means of binary code.