The gearing of this bicycle is very smooth.

This electric wire is an excellent conductor, transmitting electricity efficiently.

This machine takes energy from the power source and operates by transmitting it.

A large amount of electric current is flowing through this power line.

In this experiment, energy is measured in electron volts.

This battery uses high-quality electrolyte.

Which electrode of this battery is positive and which is negative?

He collected metal fragments using an electromagnet.

Where can I buy the electronic version of this book?

This bag is made of Inden, and it has a very luxurious feel.