A stealth bomber has the characteristic of being difficult to detect by radar.

I bought a new dishwasher.

He was repairing the road using a jackhammer.

This rock drill is very efficient and can quickly cut through rock.

There is a new air purifier in my room.

This superheterodyne receiver is very effective in receiving radio signals.

This photocopier is using the latest technology.

Please look at my new camera.

He is an expert in computer science.

My new electric vacuum cleaner is very quiet, making cleaning easier.