What is meant by "demonstration" here?

Question

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One promising example is that of carbon dioxide capture and storage technology, in particular for enhanced oil recovery, where suitable and feasible. In this regard, international collaborative efforts are needed to develop large-scale *demonstration* project.

Answer 1

I understand it to mean a sort of prototype, a project which will be high profile and achieve such convincing results that it will become largely adopted as a way of enhanced oil recovery.