Hamiltonian operators determine the energy spectrum of a quantum system and govern its time evolution.

In turbulence modeling, Reynolds operators are often used to separate the mean flow from the fluctuations.

By averaging flow fields over the symmetry group, the Reynolds operator produces invariant quantities that satisfy the Reynolds rules and are widely used in fluid dynamics and invariant theory.

I often use walrus operators when parsing input to assign and check values within the same expression.

Excavator operators must complete safety training before they can work on the construction site.

The excavator operator skillfully removed the old foundation while the crew worked around him.

After discussing the risks and benefits, the gynecologist recommended Récamier's operation to remove the remaining tissue.

To complete the cross-border project on time, the UK and European teams must co-operate closely.

The co-operative team finalized the project ahead of schedule by sharing resources and expertise.

The nurse monitored the patient's post-operative recovery throughout the night.