Metal and, more recently, composite materials have increasingly replaced wood as the building blocks for light airplanes, so fewer skills are needed to assemble them.

Another notable aspect was that new material written by Canadian soldiers and other authors had largely replaced the reprinting of foreign material.

Artificial materials have replaced straw in a few places.

Labor costs and materials to replace the damaged switching, signaling and track equipment will run at least $1 million to $2 million, they said.

Ceramics, vinyl, and new materials are replacing wood, steel, and other building materials.

With ceramic materials replacing metal cutlery, they teach metallurgy.

It was previously much used in life jackets and similar devices until synthetic materials largely replaced the fibre.

The new material can't simply replace the soil in a tree pit, because that would not provide any additional growing room.

As plastics technologies improved, synthetic materials gradually replaced natural materials in the construction of fly lines.

After reconstruction, new materials replaced what had aged beyond use.