This radio operates on dry cells.

He is working in the paddy field.

This ring is made of titanium.

That detection device is very useful for finding landmines.

He developed a device to detect earthquakes.

He searched for metal using a new detector.

This waste product needs to be properly disposed of.

I bought 5 copies of the newspaper.

He belongs to the sales division of the company.

He belongs to the sales division.