But another scientific development has produced new ethical puzzles for both sides in the debate.

Further development of polyester-based material has produced even better performance.

Parallel developments in the West would produce similar results.

Intensive development by industry is already producing results in this area.

Now, the development of the industry can produce double effect.

The development would produce 77,000 barrels of crude oil a day in the mid-1990's.

Still, they highlight how focused research and development can produce significant improvements in clean energy technology.

The next development with increasing Rayleigh number does produce such fluctuations - periodic ones.

The development of flat top vessels produced the first large fleet ships.

In a few years, he said, commercial developments that are going on right now will produce "a revolution in energy."