The pump consists of a large U-shaped tube, filled with water.

The new heaters will need a U-shaped tube at the top, to prevent heated water from flowing into the pipes when no tap is turned on.

A vertical U-shaped tube was arranged so that it could be heated by a series of Bunsen burners on each side.

A continuous U-shaped tube of the same diameter throughout is sealed on one end and filled with mercury.

The arms of the U-shaped tube terminate in sealed glass bulbs.

The simplest design is a closed-end U-shaped tube, one side of which is connected to the region of interest.

These designs normally look like a U-shaped tube, open at both ends.

The globular front part contains the U-shaped tube and the beginnings of the gut.

This worm lives in a tough U-shaped tube in the mud substrate.

The heart is a double U-shaped tube situated just below the gut.