These show the flow of materials during an industrial chemical process.

The arrows themselves represent the direction of the material flow.

What they have done is improve the flow of materials through their facilities.

Statistics related to material flows are usually combined in different indicators.

Under the current system, central planners in Moscow control the flow of raw materials to plants and set the prices.

Both rely on heat sensitive plasticizers to allow material flow into a die.

And the flow of materials from the north included luxuries that Shef had never seen.

They specify the general flow of materials through a system, and they provide some hints about where to look for typical problems.

The positioning of the torch exerts a direct influence on the material flow.

While other crossings remain closed, the flow of materials that are no longer banned faces long delays.