The graduate student explained how Plücker tubes parameterize certain lines in projective space.

In the laboratory, Hittorf tubes were used to observe the behavior of cathode rays under different gas pressures.

The hospital replaced the old Coolidge tubes to ensure safer diagnostic imaging.

The university museum displayed several antique Crookes tubes used in early physics demonstrations.

The child's Eustachean tubes were inflamed after the cold.

During the anatomy lab, the students carefully examined the uterine tubes under the microscope.

The doctor explained how inflammation in the bronchial tubes can make breathing difficult during a cold.

During the flight, her Eustachian tubes popped and her ears finally cleared.

After the factory fire, months of research and millions in funding went down the tubes.

The old radio's output relied on several electron tubes that had to be replaced every few years.