Because air is the input source, pneumatic actuators are able to be used in many places of mechanical activity.

It was something manual to do, a mechanical activity that needed no thought.

"Any mechanical or chemical activity will make it worse," Mr. Hamilton said.

For as far as they could see along the curvature of the corridor there was violent and noisy mechanical activity.

In the corridor cage all mechanical activity ceased abruptly.

The slightest movement would be accompanied by an intense sense of mechanical activity in my body.

The workers walk around in wonderment, looking at the sparks and then stroll out to the factory gate, where other mechanical activity is also frozen.

After having done various mechanical activities, they also built many steamships made of steel, but they faced a bankruptcy in 1886.

But since it no longer has any mechanical activity its physical exertions are nil.