That machine, with a single operator, now does the work of more than five dozen welders.

The Artillery used only a single operator in exchange for more supplies.

It was decided that a single operator with more experience in attractions was needed.

In recent setups only a single operator is required for all cameras.

The number of minority-owned businesses with a single operator grew much faster than the average.

A single private operator could provide service for the entire county, they said, with several stops along the route.

They ranged from single operators to 30-person phone banks.

This means that logic can be set up using a single operator.

Dealing with a single operator, he added, "provides consistency to the process and makes it even faster."

All the trains had to be operated by the single human operator.