He accidentally opened a tube site during a business meeting and scrambled to close it.

During the inspection, the engineer found a hairline crack in a boiler tube that could cause a dangerous steam leak.

The technician checked the dip tube to ensure the incoming cold water was being sent to the bottom of the tank for heating.

After spinning the sample at 10,000 g, carefully decant the supernatant and label the Falcon tube for storage.

After the flight, my doctor examined my eustachian tube to check for pressure-related issues.

Make sure the seat tube is clamped tightly before you ride to avoid the saddle slipping.

He accidentally scratched the top tube when he leaned his bike against the wall.

Under the microscope, the biologist observed a slender germ tube emerging from the fungal spore during germination.

He drifted across the lily pads in his float tube, scanning for the shadow of a bass beneath the surface.

The crew lowered the muck tube into the caisson to pump out accumulated mud and rock debris.