Tantalum is a valuable rare element used in electronics manufacturing.

It is also designed to protect valuable elements of the cultural heritage.

The D-1 is widely considered a valuable element of Soviet artillery.

It will not be denied by anybody, that originality is a valuable element in human affairs.

These are often the most valuable, diverse and productive elements in the system.

And when the race breeds back to a whole, that valuable element will be lost to the race.

However, it is possible for us to retain the valuable elements of our lifestyles.

These provide local news, weather and traffic, extremely valuable elements.

Having good old fashion fun is a very valuable element to the childhood experience.

Mining for this valuable element is anything but dull.