I couldn't find the ticket-stamping machine, so I asked the station attendant for help.

Before boarding, she hurried to the ticket stamping machine to validate her pass.

The researcher used finite-state machines to model the lexical analyzer's behavior.

During the patrol, the squad relied on two light machine guns to lay down suppressive fire.

The squad's sharpshooter was also trained to operate the light machine gun during defensive operations.

I stopped by the add value machine at the station to top up my transit card before the morning commute.

The factory invested in several add value machines to improve product quality and competitiveness.

I borrowed a friend's DVD-R machine to archive old home videos before they deteriorated.

Several DVD-R machines in the lab stopped working after the power surge.

The design team used a finite state machine to manage the user interface's different modes.