In the center of the room there was a vertical tube that also turned with the mount.

The manhole cover opened up to a small vertical tube ten feet deep in the ice.

Seven watched as Osiris dropped headfirst down the vertical tube in front of them.

Sitting in the vertical tubes and surrounded by air were fuel elements or experimental items.

The vertical tube that led up to B-deck was wide enough for her to maneuver through.

One of the panel dials had on its face a vertical tube like a thermometer.

His farsight cast around, and showed him he was suspended in a vertical tube.

A vertical tube leads from this chamber to the top of the percolator.

Other individuals have a number of vertical tubes, each with a large opening called an osculum at the end.

The vertical tube represents the tune, which carries the lenses, or words.