The diameter of its circular cross-section was about 250 feet.

Bombers had to have a circular cross-section because they were pressurized.

In an ideal optical fiber, the core has a perfectly circular cross-section.

The fuselage was that of the Yak-25 but with a circular cross-section.

It has been made by hammering a silver bar of a circular cross-section.

A second cone stood next to it, its top cut flat in a circular cross-section.

The fuselage was of metal and had an approximately circular cross-section.

The second most commonly used kind of waveguide has a circular cross-section.

The B-29 featured a fuselage design with circular cross-section for strength.

By the rules of golf, all iron grips must have a circular cross-section.