Cottrell precipitator and Electrical device

Cottrell precipitator noun - Removes dust particles from gases by electrostatic precipitation.

Electrical device and Cottrell precipitator are semantically related. In some cases you can use "Electrical device" instead a noun phrase "Cottrell precipitator".

Electrical device noun - A device that produces or is powered by electricity.

Cottrell precipitator and electrical device are semantically related. Sometimes you can replace phrase "Cottrell precipitator" with "Electrical device", this phrases are similar.