His knees ached in protest when he reached the bottom and crawled into the horizontal tube.

I bounced through into a horizontal tube that stretched ahead forever .

In most other planes, they are mounted on a horizontal tube that comes out of the instrument panel.

Ledgers are horizontal tubes which connect between the standards.

Lena patted the horizontal tube, as if it were the most normal thing in the world.

Stafford dragged him over to a corner where the horizontal tube emerged from the wall of soil.

The robot looked like a series of horizontal tubes with cameras and lights nestled in the center.

Silk nodded, pointing toward the bubble in a horizontal tube on the instrument panel.

This he did in a long horizontal tube filled with water which ran under the full length of the engine.

At the bottom, finding a horizontal tube about three feet in diameter, he pulled himself through, staying close behind the apprentice.