Sentence examples for appreciable progress has been from inspiring English sources

The appreciable progress has been achieved currently in the development of design principles, synthesis, investigations and predictions of various groups of ultra-incompressible and superhard materials.

No progress has been made".

Still, progress has been elusive.

But progress has been slow.

However, progress has been glacial.

Huge progress has been made.

However, progress has been slow.

Here, progress has been uneven.

But progress has been glacial.

Real progress has been made.

However progress has been erratic.