It is dried by heating at 250 C under vacuum.

This compound is explosive and should not be heated under vacuum.

Under vacuum the temperature can be lower than the ambient pressure boiling point.

This process is done under vacuum in order to create a plasma.

The distillate is also kept under vacuum so that it does not come into contact with air.

Furthermore, experiments have been carried out under vacuum, in which case there are no air pressure waves.

There were bubbles in the glass, so that under vacuum it imploded.

Since the technique is usually done under vacuum, the gas pressure begins at zero.

The name of the process, which was developed in France in the 1970's, means "under vacuum."

The department's main concern is the amount of time food spends under vacuum.