I recorded music with my new sound recorder.

The brake of this car is very effective.

The surveillance aircraft is monitoring the enemy's movements.

I separated the sample using a centrifuge.

A twin-engine airplane can continue to fly even if one engine fails.

The copier is broken and cannot be used now.

This motor is very efficient.

He made a book using the new printing press.

This clock is running using a mainspring.

I made a calendar using the new calender.