The technician inspected the East-West engines before the test flight.

Mechanics prefer four-stroke engines for their reliability and fuel efficiency.

Many vintage motorcycles still use two-stroke engines for their lightweight power delivery.

The vintage motorcycle's inline engine provided a smooth, steady power delivery on long rides.

The company hired several professional engineers to lead the new infrastructure project.

As a professional engineer, she reviewed the bridge design to ensure public safety and compliance with regulations.

The company released a gene-engineered salmon that grows twice as fast as wild varieties.

The retired engine cleaner told stories of dawn work in the steaming sheds, hands blackened with coal dust.

Before the vintage car show, we used engine cleaners to remove years of grime and restore the engine's shine.

The crew hitched a bank engine to the rear of the heavy freight train to push it up the steep grade.