A vital instrument of observational astronomy is the spectrograph.

For Colombia's political elite, not only is the press a vital instrument of influence, but journalism is also a well-trodden path to power.

The three countries have recognised Education as a vital instrument for achieving social equity.

This meant that during the subsequent descent vital instruments for indicating the flight attitude showed increasingly incorrect readings resulting in loss of control.

It is certain to become a vital new instrument of commerce and the creator of vibrant electronic communities.

Particularly, but not exclusively, for young people, it constitutes a vital instrument of social cohesion, informal education and economic and regional development.

This has become a vital instrument for strengthening grass-roots organisations throughout the world, without which human rights and democracy could not flourish.

Political parties and their associated political foundations are vital instruments in a parliamentary democracy.

The 11 Member States will thereby lose a vital economic instrument in the event of a financial crisis.

That's why the academy is a very vital instrument.