Scientists created partial vacuums in the chambers to test the material's resistance to low-pressure environments.

The factory's vacuum pan hissed as the sugar syrup began to concentrate.

The factory replaced several old vacuum pans to improve sugar crystallization efficiency.

Before starting the deposition process, the technician checked that the chamber had reached a rough vacuum.

When the CEO and board both stepped down unexpectedly, multiple power vacuums appeared within the company, sparking intense competition among senior executives.

To isolate the heat-sensitive compound, the chemist carried out a vacuum distillation at 40°C and 10 mmHg to prevent thermal degradation.

The technician calibrated the vacuum gauge before starting the experiment.

Some theorists worry that vacuum decay could one day produce a bubble of lower-energy spacetime that expands at the speed of light.

After the guests left, I vacuum-cleaned the living room and wiped the coffee table.

While vacuum-cleaning the living room, she found an old photograph under the sofa.