(In very early times, writers used vellum and clay which were more robust materials.)

If this dromornithid ate plants, it was equipped to process very robust material that has thus far not been identified.

For thermally robust materials, high temperature methods are often employed.

The external materials designed to be easily maintained through the use of robust materials.

Threads of a less robust material separated, and the layer detached.

These were long established with wood and paper board construction, but required a more robust material for aerospace use.

We are far from having materials robust enough to build magnets for a mini-supercollider.

Tantalum pentoxide is a highly robust material, decomposing thermally above 1470 C.

Fiberglass is a lightweight, extremely strong, and robust material.

The water reacts with the cement, which bonds the other components together, creating a robust stone-like material.