A narrow pipe of copper or steel just might work," said Sengoku.

Instead of pumping the water back across in a narrow pipe, or letting it flow at a river's width, they had the opposite arrangement.

A long, narrow pipe stopped at eye level, the other end disappearing into the ceiling.

"The call wouldn't sound as clear," he said, "and you might have to pause while the voice data made its way through the narrower pipe."

The precipitations can also narrow pipes and deposit on mountings.

The blasts of air must be for ventilation, probably narrow pipes to the surface.

"We've lived with tiny narrow little pipes and done extraordinary things with them."

One narrow pipe carries both street and raw sewage.

They soon worked their way into the more narrow pipes, slipping away from the crowd.

The light before him swept up, down, all around the narrow pipe.