I am studying mechanics in my physics class.

The mechanism of the clock is very intricate.

The mechanic fixed my car.

He has a mechanical watch.

The car is mechanically operated.

The mechanization of the manufacturing process has greatly increased productivity.

Many factories have mechanized their production processes.

The mechanicals of the car need to be checked regularly.

The complexity of quantum mechanics is truly mind-boggling.

The human body has various defense mechanisms to protect itself from harmful substances.