Brownian motors can convert random thermal motion into directed transport at the nanoscale.

The factory replaced several old induction motors to improve energy efficiency.

We replaced the old outboard motors with fuel-efficient four-stroke models before the fishing trip.

Her grandfather used to maintain rail-motors that served rural branch lines.

The factory replaced the old water motors with more efficient turbines to reduce energy consumption.

The engineers mounted two ullage motors on the lower stage to settle the propellant before ignition.

The engineering team upgraded the factory floor with new synchronous motors to improve energy efficiency.

The lab tested several repulsion motors to evaluate their startup torque and durability.

The engineering team inspected the rocket motors before the launch to ensure safety.

During the factory tour, she asked detailed questions about the driving motors used in the assembly line.