During the storm surge, the operators closed the sluice gates to protect the low-lying neighborhoods.

The old sluice-gates creaked open to let seawater into the marsh during the storm.

The maintenance crew inspected the Tainter gates before the rainy season.

As the storm approached, the coastal town's old water gates were closed to protect the harbor.

The new processor prototype uses arrays of Fredkin gates to reduce heat dissipation.

Researchers optimized a circuit that uses multiple Toffoli gates to reduce error rates in quantum algorithms.

At dawn, the canal workers checked the lock gates before the first barge arrived.

The engineers inspected the flap gates before the storm surge reached the harbor.

The engineers tested several NOR gates to find the most reliable configuration for the integrated circuit.

The engineers inspected the radial gates before the rainy season to ensure they would operate smoothly.