Descriptions

It’s used for charging batteries- it’s a battery charger

It’s used for receiving shortwave radio signals- it’s a radio receiver

It’s used to contain small nuts and bolts- it’s a nuts and bolts container

It can cut through steel using a laser beam- it’s a laser cutter

 

It’s a small object. It’s made of steel, it’s usually flat. It’s a folding blade. Now days it’s obsolete

It’s a can-opener

 

It’s a small object, 6x10x7 centimeters. It’s made of metal and plastic. It can be used several times or just one.

It’s a battery

It’s made of HSS, it’s ring shape. It’s a key part in an engine. It can stand very high temperatures and friction.

It’s a compression ring